Conditioning. People have genuinely been conditioned to see any big changes to the status quo as evil. Except when it's a glorious revolution against some totalitarian guy that establishes "democracy", like in Hunger games. The entire entertainment apparatus is aimed at showing revolutionary thought and fantasy about alternative social structures as bad. You only have kingdoms that are some good. Democracies that are sometimes corrupt but always good, cause voting and dictatorships, that are both fash and commie coded at the same time.

That said, I've been enjoying Red Rising so far.