Um, public antisemitism was pretty common everywhere in the west pre WW 2. It became a socially unacceptable position in polite circles only after the Nazi genocide.

Racism was a mainstream position back then. For example, US black population got full rights only in the 60's.

The horror of nazis was not that they were some deranged mob of gangsters that only german subconscious could put up with. The horror of nazis was that they could have happened anywhere. They are a historys dark mirror showing to all societies a very bad example of what could be.

Oh, absolutely, I know antisemitism was very mainstream back then, and it could have happened elsewhere. But far from all leaders were willing to go as far as leading a nation into full-on genocide. The fact that it was someone like Hitler who rose up is a fluke of history, although one could argue that something like it would have happened sometime anyway, maybe a couple decades later; that's hard to speculate about.

Sadly lot of leaders have led their nation to genocide and suppresion of minority cultures. Hitler was not unique even in that aspect. US had a pretty genocidal tendency towards native americans, for example.

What was unique in Nazi germany was the industrialized efficiency with which the horror of genocide was implemented. IBM:s machines played a no small part in that.

The nation of Goethe and Beethoven plunged into a total inhuman batshit insanity. Another horrible aspect of this was the ease people could go on with it - "just doing my duty and following orders". Some people did the final horror of killing, but the precursor to that was the industrial labour and logistical planning of getting the people to the slaughterhouse. The system that funneled people to their doom was absolutely chilling in it's efficiency. And it could have happened everywhere as well.