Seriously tho, I like that Obama honors both sides of who he is, but it's clear that he identifies as a black man because that is how the world sees him. He's not wrong to do it. He wouldn't be wrong to identify as biracial either. How he wants to identify is his business. Instead of arguing about it, maybe we should shut up and accept what he says about that particular thing, because as far as that is concerned, he has the final say on it.
ETA: And by the way, OP, maybe you should review why this "bothers" you so much. This has nothing, NOTHING, to do with how good of a president he will be. Get over this race nonsense and get to the heart of the matter.
Unless this race issue IS the heart of the matter for you.