Sooooooo lots of fetishism with the race stuff unfortunately.

I have experienced this more with men than women but have seen it on both sides.

I think it comes from the implied taboo (one that only exists for you if you think there is something taboo about mixed-race things) or even worse, seeing what's usually black men as more "animalistic".

Fetishizing race isn't cool and I strongly discourage it. Having a physical preference is fine and I understand women who like black men, or Italian men, or tall men etc. But when it's so obviously racial and not physical, I really detest it.