but how can they literally not see this?! Its been repeated over and over in history! How many times do they have to be wrong? How many times do they find out they were deceived on every level?! They know their politicians lie, at least they say they do, but they never once question them! Its so fucking tiring to watch it happen every single fucking time! They never learn! Ever!
It's because they know, if even on an instinctual level, that their material interests are fundamentally aligned with the empire. Every time they're lied to, they can easily say "it's different this time" simply because it broadly serves them better to believe those lies.
Most of the propaganda isn't there to "trick" or "fool" them into believing the lie, it's there to provide them with the justification, the excuse that they long for, that they need in order to maintain their view of themselves as good and right and smart. It's not that they're incapable of learning, it's that they have no material incentive to learn and plenty of incentive not to, since doing so would challenge their identity, their firmly-held beliefs that all their privilege and treats are earned and that they have a legitimate and moral right to them. Which of course they don't. Of course they're going to believe the lies over and over and over.
Have you ever been on a bike (usual analogy is a car, but fuck that) traveling along at a pretty good clip, and you come upon another bike ahead of you that's moving in the same direction as you but going slower?
They look like they're moving forward against the background scenery at first, no surprise there. But as you're passing them, they look like they're moving backwards against the background hills. Then once you're a ways ahead of them, they look like they're moving forward normally again. Ever notice that? If not, try it sometime. The other bike was never actually moving backwards, but since they are going forward more slowly than you, relative to the background, it does look briefly like they are going backward.
Same thing happens with slower planets further from the sun than we are - as earth passes them, it looks for a period like they're going backwards against the background stars from our perspective. That is retrograde motion. The planets don't actually stop in their orbits, move backward for a bit, stop again and then move forward, but it looks like they do because of our relative motion around the sun.
Now, if you're from a time before it was well known that Earth is in orbit around the sun same as those other planets (and not the center of the solar system and universe), then it would mean those planets were moving backwards. And if you also think of the sky as literally the heavens which determine the fate of people on Earth, this backward motion is going to seem extremely significant (even if it's in reality basically just an optical illusion).