It's becoming obvious that they want to control all of the content on YouTube going forward. I wouldn't doubt if they soon announce that all videos will have to be approved before they are posted. And with that, YouTube will become irrelevant in a hurry.
With their 10,000 view before monetization policy, they have already drastically cut the number of people starting new channels. Now they are closing down bigger channels and demonetizing so many older videos its just obvious what they are doing. Sad and dumb.
It is dumb. They are creating the need for a competitor to rise when before there was none. Now, lots of new developments are scurrying to be the replacement youtube where creators can get paid. At some point not far in the future, their board of directors and share holders are going to look around at the lowered revenues and ask, "WTF just happened" and the directors will answer with "Diversity" to which the share holders and board members will respond with "diversity sucks and doesn't pay". But by then, it will be too late. Oh well.