I agree and that is one way it needs to be approached. Marxism might seem to be a great idea until you get to the body count. I have always been amazed that communism gets let off the hook for its holocausts but Nazism doesn’t.
Outside of Judeo-Christian circles, the Nazis HAVE gotten off the hook.
Most kids today have no clue about it and a sizeable chunk of the world believes it never even happened.