I'm sorry to say, but there's no evidence it's true. Formally more educated, and formally less educated belong to different social tribes, and react to different information stimulants, and that's all. Advertising industry successfully pushes peoples choices of all sorts of education.
Also, I believe your idea of authoritarianism is not wholly correct. I was born, and raised in a real dictatorship which provided free tuition (probably, at least partially because it makes a great influence, and control apparatus once nationalized) as well as cheap health, and communal services. In fact, all left dictatorships did/do it to some extent to have an ideological selling point. Also, dictatorships often care less about one's voting pattern, because they can count it properly. What do they always care about? Information. They all restrict freedom of speech.
Really??? Most "educated" people are proud of their indoctrination. They frame it and put it on their wall and resume
Using scare quotes and imolicitly asserting that most of what goes by as education is actually indoctrination without argument as if it was an established, uncontroversial fact is not a substantive contribution to the discussion, though it is a good way of signalling a particular tribal affiliation.