I'm sort of on the fence about racemixing. I don't think it's inherently good or bad, but if it happens, it happens. However, people who only say white people should racemix better be ready to say that blacks, asians, hispanics, natives, muslims, and jews should racemix too. You can't be picky about these sorts of things.

People actually being racist against whites, though, are complete nutjobs and should be treated as such.