So it is essential to take all these factors into context when determining what will happen.

First off - there are real hard limits to full bore propaganda. When the people in change of propaganda have grown up under propaganda, it leads to little room for nuance. You can see this with how liberals can't explain what conservatives believe.

Like a PA system on too loud, a small feedback can quickly overwhelm the signal.

You see this in fatigue of propaganda. The whole "there is no truth in Pravda" and the way "diversity is our strength" is now said with a droning tone.