Of course, there are those who would vote against Obama because he's black, just as there are those who would vote against Hillary because she's a woman. There's nothing to be done for those people except wait for them to die off.
There are probably quite a few who would vote FOR Obama solely because he's black, and some who would vote FOR Clinton just because she's a woman. Is that not just as bad? And I feel sorry for black women Democrats. If they vote for Clinton, they're traitors to their race, if for Obama, traitors to their sex.
(By the way, how come "Obama" and "Hillary." OK to call her by her first name because she's only a gurrrl?)