I say this as someone who prefers tieflings and half-elves for their outsider nature, in large part due to my neurodivergence and (a)sexuality. But the reasons why I'm an outsider isn't because of those factors; it's because of other ,"normal" people who can't handle me being different. The blame isn't on me or on half-whatevers for being different; it's on the other people for not being more understanding. The same would be true if I were a different ethnicity. This is the important difference. If you, for whatever reason, need that bigotry there, then the bigotry should be squarely on the shoulders of the bigots, not on the victims of their bigotry.