“(of course, it took the whole free world to blast Hitler out of office...)”
Hitler had a fully brainwashed citizenry and made alliances with some of the most ruthless butchers on earth.
He also had some of the best minds at his disposal and had spent his time preparing.
I have no idea why or how, but he also convinced entire nations that the Jews were responsible for everything that went wrong and used brilliant minds to literally start a wholesale extermination in one of the most methodical ways possible.
He was one of the few people in history who had the chance to do wonderful things but went very very wrong. I’m still dumbstruck and all he managed to do. All those deaths.
Please pause for a moment and reconsider what you just typed!!! You have described the current mess!
I think he started out by just being nuts and it spiraled down from there!