Werewolf, I don't know what country you're talking about.
Take off the rose colored glasses, look around a bit and you'll figure it out.
No glasses, here. Maybe you see more racism than average, maybe I see less. But from what I see, America is perfectly good and ready to elect a Black president. If Mr. Black Candidate was the only alternative to the other guy, race wouldn't be of much concern.
Not that many people really care about race that much (and if they do, they probably don't even vote). They might not want Obama to marry their sister, but most Democrats are not going to be too put off by his skin color.
In a way, though, your words might be self-fulfilling prophecy. If enough Democrats fear that the unwashed masses are secret racists, they won't nominate Obama. Not because America isn't ready, but because some people
thought we weren't ready.