Much like in our public education system right now. They're very busy teaching our kids what to think, instead of teaching them how to think for themselves.

Like this. Hitler was not a socialist, he was a fascist. Fascism is strongly opposed to core aspects of the Enlightenment and is an opponent of liberalism, Marxism, and mainstream socialism for being associated with failures that fascists claim are inherent in the Enlightenment. In short, keep people stupid and you stay in charge. Which is why there was so much re-educating going on in Nazi Germany.