These idiots don't know what "playing the race card" means. It doesn't mean getting negative about someone's race. It means accusing someone else of being racist, or blaming something you don't like on invisible racism, so you don't have to respond substantively to their arguments. So all that bile about "blacks can't play the race card" is simply incoherent, reflecting the ignorance of the DUmmies. Obama's statement, "They are gonna say.... Oh, did I mention he is black?", is PRECISELY what "playing the race card" means.
The vast majority of white Americans are not racists. Most of them go out of their way to avoid even the appearance of racism. There are many, many, many reasons to vote against Obama -- lack of experience, lack of judgment, ties to extreme radicals, 20 years listening to hate-whitey sermons, working side by side with an admitted weather underground terrorist, tenuous connection with main stream American culture, lack of any sense of self (hence his sucking up to campus "radicals" to prove his "blackness"), moribund leftist economic policies, worship of big government, etc. etc. etc. Telling a white person that their decision to vote against Obama is a reflection of their racism is insulting and itself racist.
It's also counterproductive. It's the kind of crap that makes people not only vote against Obama, but get out and campaign for his opponent.