And here we see one of the pillars of leftism: teach kids that everything and everyone that came before them was not only evil, but cartoonishly so. The man isn't just a wife beater, he's not just racist, he's not just unfaithful, he's all of those things and more. Because he's from the past, and is therefore the avatar of malice.

In a world where people think this way, it's trivial to burn everything down and replace it. They'll cheer it on right up until they either starve to death or get murdered.