It's not just education, it's shitty parenting. You'd recursively have to educate Hitler's parents, and to do that you have to educate their parents etc. ad nauseum. Pretty soon you'd blow your stack. Naive interventionism is worse than just whacking Hitler.
They don't. People grow up to be like their friends, who in turn grow up to be like the general cultural sentiments among the adults they interact with. (Source: The Nurture Assumption.)
