Thing is, the web has up to now been a quite free market sort of space. In other words, if one company stops a service that there is actually a demand for, another quickly starts to provide it, or users make some other sort of plan.
I don't know much about how YouTube works, or what the whole deal with demonetization is, but you can be sure it will be only a question of time before someone will come up with a creative solution for those affected.
RE: the chilling effect of youtubes demonetezation