You Tubers (the big ones anyways) should get together and form some kind of association / union which would give them a bit more force to protect themselves. You get a few people boycotting and that's not going to stop anyone. But a united group of the top 500 let's players? That might give them pause.
That kind of already exists. Polaris, (which I believe AJ is a member of) provides some blanket protection in cases where streamers get hit with take down notices. The problem is that it prevents them from losing their channels; it canít do anything to combat the practices that put them in danger in the first place.
There are some other large groups as well but Polaris is one of the most powerful since it is technically owned by Disney.