Ever consider that Obama wanted to be a politician more than he wanted to be black; that he wouldn't have cared about being black if he didn't want to be a politician; that his desire to be a man of POWER is what drove him into an identity crisis because he could never really be the white candidate and figured no one would ever understand him as the mulatto candidate, leaving selling himself as the black candidate the only option he could imagine?
If that is the actual cause and effect its not surprising he wouldn't be honest about it; much more compelling to talk about an identity crisis than a consuming desire for Power.
I'd add that Obama doesn't particularly like being a politician per se; he likes power, fame, and adulation, but he's not a political animal the way, say, LBJ was. LBJ was happiest as a Major Player on the political scene when he was Senate majority leader. He then found being Chief Executive got to be a drag. Obama insiders say that being a state legislator or even a U.S. Senator bored Obama.
Another oddity is that the neighborhood Barack and Michelle chose to buy their big house in is the neighborhood chosen by the friends of the friends of the people who assassinated Barack's boyhood idol, Malcolm X. As he explained to the Chicago Tribune, he chose Tony Rezko to help him out with his buying his house because Tony knows all about real estate in that neighborhood. What the Tribune didn't explain was that the reason Tony knows all about real estate there is because he was long the business manager for the inner circle of the Nation of Islam, and that's where they live. That would kind of weird me out, but of course nobody has ever asked Obama about that.