And there is a saying that behind every great fortune are some pretty terrible crimes. Naturally we can see 15 year old on death row for killing someone while robbing a drugstore for 20 dollars. I mean even Hitler was adored by some in fact millions. I am not so sure about that. But there was still underground resistance.
History is full of rebellion for freedom.
People who wish freedom fight to be free. Morality is constant. In fact there were far more collaborators then resistors and ten times as more passive elements that accepted Hitlers status quo in the occupied countries. The reason Hitler was defeated was the mistake of a two front war. And hardly had anything to do with morals.