Asha Logos on YouTube explores this topic in a recent episode of his ongoing series "Conspiracy? Our Subverted History". Highly recommended.

In a nutshell, originally there was the Torah and a growing amount of oral religious teachings that were passed down. Two great rabbinical schools arose in Babylon around 2,000 BC. Over time these schools were corrupted along with the corruption of Babylon and heavily influenced by ideas which are basically evil and satanic in nature.

What is evil? The opposite of good. Take what's good, flip it around, and do the complete opposite. Pedophilia, human sacrifice, theft, murder, mysticism, "black magic", slavery, rape, all became condoned in Babylon.

The oral religious teachings became corrupted and were written down in what became the Babylonian Talmud and Khaballah. The teachings were twisted into the idea that the chosen people were destined to rule the earth over all others, whom existed solely to serve the chosen people, and that the ends justified the means.

King Herod replaced much of the religious leadership in Judea with Babylonian Talmudic rabbis in the 1st century BC in an effort to placate the populace. That's where the satanic influence comes into play.

I suspect the Khazars/Ashkenazi adopted this Babylonian Talmudic interpretation later on and it's grown into the cabal of today.

I also suspect your average Jew in America is unaware of the details of the Babylonian Talmud, or dismisses the extreme tenants as outdated.