I don't think anyone should ever have to justify a personal preference. I don't see how race plays an issue at all. Race is one of those subjects that has only the power we choose to give it. I think almost all of the people on this forum are committed to the idea of consenting adults making these choices for themselves. If the people affected by the decision don't have a problem with it; no one is being harmed and no rights are being violated; I don't think it's anyone's business but the participants.
I think almost everyone on this forum is committed to "No means no." It is my power to say "No" for any reason. That same concept applies to race, religion, hair color, hygiene, etc. The most fundamental basis of the sexually liberal community is "No means no," everyone's a consenting adult and no one gets hurt. As long as those precepts are being followed, then someone's preferences aren't for anyone else to judge.
FYI, the race-debate was started by a (apparently disturbed) person who has since been banned from the forums due to his inappropriate behaviors. If anyone finds a place where there aren't stupid people, please let me know and I'll move there and live happily ever after. We have to live with the fact that there are people in the world who will hate based on factors other than character. These include race, religion, and sexual preference. We have to exist with these stupid people, but we don't have to join them or even acknowledge them by hating them back.
Haters are people who don't create anything. Their entire identity is based on what they hate. The don't want to make life better for themselves or anyone else; they just want to hurt others. The pain they bring on themselves is generally worse than anything we could do to them. As Gandhi said, "His deeds carry their own punishment." They will generally die lonely and broken old men and women. I think Dan and Jennifer made a good decision in excluding these people from our forums.