I think a lot of places have a strict "No Drama" policy. Getting rid of a white dude reduces the "Drama", while getting rid of a PCW/SJW increases the "Drama" - so the person who gets rid of the PCW/SJW in turn gets gotten rid of to reduce the "Drama". Hopefully it'll swing the other way and it'll be the "political agitator" who gets gotten rid of as people wise up to the fact that such people invent a never-ending river of "Drama" and start costing them real talent. But in this sort of short-term view of public relations (exacerbated by the social media "flare up" phenomenon), they go with what solves the problem the quickest and quietest.