How much more offensive?

None. None more offensive.

In a New York Times Op-Ed on Proposition 8 and the black vote, columnist Charles M. Blow (go ahead, be ten years old, I'll wait. ... Done? 'kay.) writes:

Marriage can be a sore subject for black women in general. According to 2007 Census Bureau data, black women are the least likely of all women to be married and the most likely to be divorced. Women who can’t find a man to marry might not be thrilled about the idea of men marrying each other.

I... I call bullshit all over the damn place.