Wood,
I suspect that so much of what we're seeing has very little to do with actual racism, or "white supremacy." Rather, what we're seeing is identity politics to the extreme: an extreme that is SO far over the top that those who practice it dispense themselves from every one of the basic social norms of decency, respect and compassion. It's become a means of NOT having to listen, a means of writing off anyone who dares have an opinion different from their own, even permitting violence against those who dare to disagree.

The language we're seeing would have in NO way been acceptable to these same people, had it been sued against Obama. Yet, anything goes if you're infected. 

I fear many have forgotten (or never really understood) the true nature of a society: the idea that there ARE rules, that work because of what's unwritten: decency, manners, and social skills. Our constitution is a contract, yet more and more seem to opt out. Supremacy?  No.  Anarchy?  Absolutely!