Yet it's often not in our control, since we also have to consider things
besides race like cultural background.
I would date black women if I could relate to them on as much as I could from other women of other backgrounds. I've known enough black women where I know that I don't "click" with most of them, even if we get along on a platonic basis. It goes to show how culturally segregated we can still be in America. (not that it isn't as bad or worse elsewhere)
I've found that I can be attracted to all sorts of women. Different "races", sizes, shapes, ages, etc. But I'm primarily attracted to white and south-east Asian women. Why? The first one is kind of obvious since people consider me white, but I really don't know about the second other than that I seem to get along really well with them.
If someone genuinely wants to open themselves up to other sorts of people, I think that's great. The part where it would get weird for me is if someone was purposely dating people they aren't normally attracted to in order to make themselves feel good about being less racist. Everyone's talking about "fetishization" these days, but purposely dating black guys can be fetishizing even if it's well-intentioned.