The goal shouldn't be to change minds, but instead to make people see that you aren't crazy, and that you make some good points, even if they don't agree with your overall message. Make which good points and they may start to come over to your side.
You don’t understand, we need to kill unarmed people walking down a road with a drone strike in order to save the hostages. Don’t worry, we made sure we got’em all.
Can you explain why someone who knows what the words "neocolonialist" or "imperialist" mean wouldn't use them to describe the "global north" and "global south" disparity? I'm interested in your theory.
If anything it's the opposite. Propaganda implies your only getting one side of the issue, so the less words or concepts you know the more likely you are to have been propagandized.