It is hard to know how to even respond to things like this. Last I checked, we still have a black president in the White House. Also, last I checked, lots of people who voted for Obama twice, voted for Trump. Did the white Obama supporters who voted for Trump turn into white supremacists over the past eight years?
This nonsense really needs to stop. This is identity politics at its worse and it is absolute poison to a multi cultural democracy like the USA. Despite what you have seemed to convince yourself of, not everything can be explained in terms of white people being the problem.
And, whether or not you are aware (or even care), this is the type of stuff Trump supporters feed on.