Because she wants to I guess. She wants to say it's all about the person on the inside that counts and that is 100% true but physical attraction is another enity and it's appearent that she just likes men of that race. We are all attracted to certain people. For example, I like women, almost all of them.
Well if she admitted that it would probably give her negative publicity.
She likes the big D and doesn't wanna come off as such
Jungle Fever: what is that, Black Lust ?
Who cares one way or the other? :)