I'm not saying that we shouldn't be allowed certain aesthetic preferences - some guys like redheads, others like big breasts, and still others are intrigued by certain shades of skin - but it gets hinky once it intersects with race, where certain personality types are often ascribed to those ethnically-derived facial features and skin tones. I can appreciate the aesthetic qualities of a whole range of women, but by the same token, I don't associate those physical traits with behaviors, like "Asian = submissive," or "Latina = hot-tempered," but with a lot of guys (especially a lot of WHITE guys), that is indeed the case.
EXTREMELY off-topic now, but my fellow white men are a huge reason why I can get nervous about dating women of color, because I feel like I owe it to them to make them feel like I'm not just dating them because I'm "slumming" or because I'm trying to earn Liberal White Boy Sex Cred.
Now, take THAT level of sexual complication, and juxtapose it with interracial relationships that are TRULY interracial - as in, two different SPECIES - and see what happens. Do Skrull women (or men) have certain sexual stereotypes associated with them, like Asian women and black men often do? How about synthezoids? Or mutants?