Obama, on the other hand, is the son of an African man - born and raised in Africa, who abandoned his son to return to Africa and his other wives and children. Obama's mother was a Caucasian from Kansas, a cousin of Dick Cheney, and Barak was mostly raised by her parents.
Yes, he must have suffered from some discrimination based on his appearance, but as the son of a white middle-class mother he did not share the rest of the culture.
I make no value judgment here, I am only commenting on perceptions.