From The Myth of the Twentieth Century:

The Etruscans, Ligurians, Sicilians, and Phoenicians (or Carthaginians) were not an earlier stage of development, nor were they tribes of the Roman people which had each made its contribution to the general culture. The true shapers of the Roman state stood implacably against them all, and, on the basis of racial folkish principles, subjected and partially exterminated them. Only that spirit, that will, those values which revealed themselves in this struggle, deserve to be called Roman. The Etruscans present us with an unequalled example of the way in which the Greek religion and way of life afforded them neither progress nor spiritual elevation. Like other near eastern peoples, the Etruscans had encountered at one point the Atlantic Nordic Mythi, which were by then embodied in Greek tradition, and they imitated Greek plastic and pictorial art as best they could, even appropriating the Hellenic pantheon. They succeeded only in corrupting everything they touched and turning each attribute into its opposite. Yet this provided reason enough for certain researchers to prattle foolishly about the extraordinary spiritual legacy of the Etruscans and the basis for growth it provided, and for the world historical dedication symbolised in their tragic fate. All this plainly derives from the same inner sense of identity which binds the rising asphalt humanity of the megalopolis in a very significant way to all the wretched refuse of Asia.

The legends and the tombs of the Etruscans make very clear the reasons why the virile, healthy farmer folk engaged in so desperate a war against them. Two examples epitomise the character of the Etruscans; the sacred prostitute and the priest magician who, by means of dreadful rites, kept at bay the terrors of the underworld. The great whore of Babylon of whom the Apocalypse speaks is no fairy tale or metaphor, but an historical reality attested to a hundredfold. It was literally the rule of the hetairai over the peoples of the near and middle east. On high festival days at all the centres of these various racial groups, the official prostitutes were enthroned as the embodiment of a common sensuality and universal lechery. In Phoenicia they served Kybele and Astarte; in Egypt, the great procuress Isis; in Phrygia as priestesses of wholly unbridled communal sexual orgies. The reigning priestess of love was joined by her lover dressed in diaphanous Libyan robes. Anointed with costly perfumes and bedecked with precious jewels, they then copulated before all the people (just as did Absalom with David’s concubines in II Samuel XVI:22). This example was imitated in Babylon, in Libya, and in Rome under the Etruscan dynasty where the goddess priestess pushed the institution of the hetairai to its extreme limit in the closest collaboration with the Etruscan priests.

Attempts were made quite early to interpret Etruscan inscriptions on graves, mummy wrappings, and papyrus rolls, but not until Albert Grünwedel was the script successfully deciphered, and the results show the Etruscans in a hideous light. Even the Greek solar myth that the sun dies and is then reborn as a god out of the dark night and with redoubled potency, was appropriated as an Etruscan motif. But in the hands of the Etruscan priests this becomes Asiatic magic, witchcraft linked with pederasty, masturbation, the murder of boys, magical appropriation of the manna of the slaughtered by the priestly murderer, and prophecies derived from the excrement and the piled up entrails of the victims. The virile sun impregnates itself with the magical phallus on the solar disc (the Egyptian point in the sun) which finally penetrates it. From this is born a golden boy, the foetus of a boy with a magical orifice. This is the so called seal of eternity. The violence of the magical phallus is imagined as a bull which copulates with such frenzied force that the disc rolls and the phallus bearer of the horn turns to fire, the phallus of him who possesses the heavens.

In endlessly repeated obscenities, the original myth is degraded into repulsive homosexual love. This is to be seen on the wall paintings of graves, as in the Golini tomb where the dead man holds a banquet with his boy lover in the next world, and where two gigantic phalluses spring up from a sacrificial fire as a result of magical satanic rite. According to the inscription, this, the lightning of perfection, is thus perfected.
Translated from the jargon of magic, that means that the creature born of woman is deified after putrefying, and becomes a phallus.
From the inscription of the Cippus of Perugia, there is recorded a convocation of satanic priests who perfect a spectral manifestation so as to burn in demonic frenzy. He who has this boy has the demonic knife. Eternal is the fire of the boy ..... a magus of the perfected seal.

The murdered boy now becomes a little goat. Thunder personified is a metamorphosis of the son gained by violation—the perfected little goat. Here is to be found the origin of the horned apparition and the goat headed devil, whose appearance in the literature of witchcraft was hitherto an unsolved riddle. Its antique types are the Minotaur, especially the one over the well known grave of Corneto, the Tomba dei Tori, and the Greek Satyr. He clearly illustrates a crime crying out to heaven, comments Grünwedel. The meaning of these constantly repeated customs of the Etruscan religion is to be seen in the fate of the shamefully abused boy prostitute who is slit open to symbolise the birth of the diurnal sun from the egg that his apparition has developed when fertilised by the semen collected in bowls.

Thus a spectral bull appears, fiery like the sun, sexually erect, and accomplishes again and again the demonic self copulation. With the performance of this ritual, the manna of the murdered boy is supposed to pass to the priest, who is the representative of the Chosen (Rasna, Rasena), as the Etruscans—like the Jews—called themselves. The priest next lets the fumes from the entrails ascend to heaven. There is also the magical use of faeces, once again in a vile travesty of the Greek solar myth. The divine cherub attains the supreme power which emanates from him as six rolls of gold excrement, creating the fire of the heavens.

The chosen one becomes such by supplying his entrails. Etruscan vases provide ample evidence of this; witches are portrayed, offering money to youths to persuade them to dedicate themselves and then to ascend to heaven in flames. Herein lies new evidence for the primeval home of witchcraft and Satanism on European soil. It is easy to understand a scholar like Grünwedel, who in this respect sees close analogies with the Tibetan Tantras of Lamaism, saying:
A nation which is ready to paint wall pictures over the entrances of graves like the two scenes in the Tomba dei Tori, which permits itself to write such filth in graves and paintings like those in the Golini grave, and to cover sarcophagi with the most repulsive scenes (I need mention only the sarcophagus of Chiusi), to place into one’s hands representations of the dead as in the text of the Pulenana papyrus roll, to cover toilet articles with the most hair raising obscenities, parades the most despicable human degeneracy as its national legacy and religious persuasion.

It is necessary as a prelude to be quite clear about the true nature of the Etruscans so that we may understand fully that the Nordic Latins, the true Romans, had the same experiences as the Nordic Hellenes before them and the Nordic Teutons after them. As a numerically small people, they waged a desperate struggle against the forces of hetairism, with their strong emphasis on patriarchy and the family. They purified the great whore Tanaquil by transforming her into the faithful protectress of motherhood and portraying her with dresses and a spindle as a guardian of the family. Against the sorceries of an outrageous priesthood they posed the hard Roman law and the dignity of the Roman senate. With the sword they cleansed Italy of the Etruscans (as a result of which the great Sulla came particularly to the fore) and of the Carthaginians, whom the former always called to their aid. Yet the preponderance of numbers, prevalent superstition, and the usual international solidarity of rogues and charlatans gradually eroded the old honourable Roman life. This was exacerbated by the necessity of maintaining Roman strength by enlisting the support of the racial cesspool of the Mediterranean peoples. In particular, Rome was unable to cast out the HARVSPICES and the AVGVRES. Even Sulla was accompanied by the HARVSPEX, Postumius, and Julius Caesar after him by another of that ilk named Spurinna. Burckhardt had already had an inkling of these now established facts—which are carefully ignored by the Etruscans of our great cities. He wrote in his Griechische Kulturgeschichte as follows:
When, however, with the unleashing of all human passions during the last years of the Roman republic, human sacrifice again appeared in a most abominable form, when oaths were made over the entrails of slaughtered boys—as with Catilina and Vatinius (see Cicero, IN VATINIVM, 6)—then it is to be hoped that this had nothing to do with Greek religion or the ostensible Pythagoreanism of Vatinius. The Roman gladiatorial contests, towards which Greece maintained a permanent abhorrence, had derived from Etruria, at first as funerary rites for dead aristocrats.

This clearly indicated that human sacrifice was also a feature of the Etruscan religion.

The Etruscan priest Volgatius who, at Caesar’s funeral, ecstatically proclaimed the last century of the Etruscans, was only one of the many who exercised great power over Roman life and manipulated the sufferings of the people in the interests of the near east. When Hannibal stood before the gates of Rome, these HARVSPICES declared that victory was only possible by adopting the cult of the Great Mother. This was brought from Asia Minor, and the senate abased itself by going down to the shore on foot to receive it. In this way, the priesthood of Asia Minor entered the eternal city along with the great whore of the Pelasgians or the beautiful and delightful whore (Nahum III, 4), and took up residence on the sacred Palatine, the focal point of the old Roman thought and culture. There ensued the usual near eastern religious processions. Later, however, the debaucheries were restricted to the district to the rear of the temple walls in order to escape the anger of the better part of the people.

The HARVSPICES triumphed. The Roman papacy was their immediate successor, and the temple hierarchy, the college of cardinals, represented an amalgam of the Etruscan near eastern Syrian priesthood, with the Jews and the Nordic Roman senate.

The medieval picture of the world also derives from the Etruscan HARVSPICES, that frightful superstition of magic and witchcraft to which the millions of Europe fell victim. Nor did this die out with the Witches’ Hammer. It still survives in church literature today, to be resurrected at any time. It can be seen in those gargoyles which not infrequently disfigure our Nordic Gothic cathedrals with a grotesquerie of extreme abnormality.

Even in Dante, in a grandiose form, bastardised Etruscan antiquity erupts anew. His Inferno contains the ferryman of hell, the fiery swamp of the Styx, the bloodthirsty Pelasgian Erinyes and Furies, the Cretan Minotaur, those fiends in the form of disgusting birds who torment suicides, and the amphibious monster, Beryon. The damned run through a scorching desert under a rain of fiery drops. Malefactors are turned into bushes upon which the Harpies feed, and from every broken twig of which their blood gushes forth accompanied by unending screams of agony. Black bitches pursue other evildoers and tear them to pieces with unspeakable pain. Horned demons scourge swindlers. Prostitutes are drowned in stinking excrement. Popes, guilty of simony, are confined within narrow ravines. There they languish, their tortured feet writhing in flames, while Dante rails loudly against the degenerate papacy as the whore of Babylon.

The grave inscriptions and paintings in Tuscany reveal that all these ideas of the underworld are of Etruscan origin. Just as in the Christianised upper world of the middle ages, the idea of eternity is depicted with people hung by their hands and tormented with burning faggots and other fiendish devices.
The avenging Furies were depicted by the Etruscans as utterly loathsome, with animalistic or negroid features, pointed ears, matted hair, fangs, and so forth. It was one such Fury with a bird’s beak who tortured Theseus with her poisonous snakes, as a wall painting at the Tomba dell’ Oreo at Corneto shows. Does this reveal the primeval hatred for the legendary conqueror of the ancient demons of Athens? Beside these Furies are Typhon and Echidna, those horrible, one eyed demons with snakes for hair. The Etruscans generally dwelt with sadistic pleasure over every possible representation of torture, murder and sacrifice. The slaughter of human beings was especially delightful for them.

Musically untalented, lacking any poetic gifts, incapable of producing an organic architecture of their own, and without even the rudiments of philosophy, this near eastern people devoted itself to the study of birds’ entrails, and to complex magical and sacrificial rites. Not without some technical ability, it was almost wholly dedicated to commerce, and because it was tenacious, it poisoned Roman blood and transmitted its obsession with hellish torments in the world to come to the churches. The ghastly and bestial demons became an enduring and effective tool of the popes, and, through the conceptual world that had been poisoned by the church of Rome, dominated our middle ages. Medieval art gives shocking testimony to this. One can see the proof of this even on the Isenheim altar, as well as in the Descents into Hell by other artists.

Only when we have learned to recognise the utterly alien origins of these concepts and muster the resolution to rid ourselves of this diabolism will we have cast off the middle ages. But with our emancipation, the Roman church, which is inextricably linked with the sadistic visions of the Etruscan hell, will collapse from within.
The book can be read in full here:

I'm curious what folks think of this passage, the book itself, and how many have read it.