Consider the word racist, "the belief that groups of humans possess different behavioral traits corresponding to physical appearance and can be divided based on the superiority of one race over another." Many people who say "I'm not a racist" are correct. They can be xenophobes and/or bigots.
There is no specific English word to describe bona fide racists from David Duke to Charles Murray, without including xenophobes, bigots, and people with strong unconscious prejudge.