Dumb people say dumb things. My guess is there are a lot less dumb people now than there ever has been. But dumb people will always exist.
I’ve never read any of those authors. Sociology has never really interested me, but good for you for learning history and studying what interests you.
Like, if you’re looking to engender yourself to someone common hatred is surprisingly effective. People inherently trust others who agree with them, and shouting loudly you hate Nazis is a cheap and easy way to gain points to the crowd they’re trying to gain favor with.
My take is if you’re so unconfident in your ability to discuss you resort to shouting you hate Nazis, you’re probably a moron. It’s like saying “I disagree with anyone who even SUGGESTS drinking rat poison.”