I was mostly talking about a person who cannot actually realize that they're saying racist things (through impairment of their faculties), but I guess I kind of formulated that badly. I certainly didn't mean to be some sort of apologist.

FWIW, I was thinking of this with my original comment: https://www.youtube.com/watch?v=MbdxeFcQtaU

(... but I see that it doesn't necessarily apply in this context.)