From everything I've read/watched from the creators' side, what most of them really want is more clear communication from YouTube about why their livelihood is playing hide and seek seemingly at random. It's not about rights as such.
Demonitization is arbitrarily enforced.
There are entire categories of subjects on YouTube that are verboten just because they might come close to mentioning something that might bother advertisers.
Here's another take on it if you don't mind listening to someone speak about YouTube politics over video people playing games.
https://www.youtube.com/watch?v=8xARpOT1gnw
tl;dr;
Military history content creators get demonitized for content that's too close to guns.