The point is to make it obvious that, although there are racial extremists black, white, hispanic, asian, Jewish and otherwise, whites are the only ones who can't seem to get away with it, whereas blacks can get their hate speech broadcast on national television and Jewish people have a whole country based on it and subsidized by our tax dollars.
And, of course, exposing the ignorance of people who would bend over backward to refuse to acknowledge that abundantly evidenced fact. And lastly because, no matter how many times I do it, the same people show up and start screaming with every new thread.
That's the point.