I think you guys are making him out to be way more racist than he is. I've met my fair share of racists, and I'm not saying he doesn't have racist views, but it clearly runs deeper than "preserve the white majority don't dilute the gene pool" because of the stuff he says right after that. I don't think he specifically has a problem with people who aren't white, only when people of a different culture all mass immigrate to another country and refuse to adopt the culture.
Like all those African immigrants back in the 1800s.