Tell me you don’t know any American history without telling me you don’t know any American history.
Anti-semitism seems to have been a common prejudice in Europe pre-WW2. You’re even playing into one of the tropes by implying that some Jews being present among Lenin’s thugs is representative of the entire Jewish people, whether they be in Italy or in early 20th century Germany. You’re also being transparent about your motives to white wash Hitler and the Nazis.
Racist American tried to give their racism a “scientific” basis (which would “justify” black slavery, mind you) in the 19th century. The Cornerstone Speech by the Confederate vice-president even said they were establishing the confederacy on this pseudo-science. I’ve been reading some Antebellum newspapers lately and pro-slavery writers say the same bullshit about political impetus and “healthy instinct”.
Get out of here with this bullshit.