I believe that there is a long list of very large reasons, but at it’s cornerstone, there remains one basic motivation, racism. The bastard hates whites and everything our country has ever stood for.
I have zero doubt that you are right on this count. Absolutely no doubt.
Obama probably has rationalized his motivations, core beliefs, and emotional responses such that he likely doesn't consciously believe that he's racially motivated, but it is probable IMHO that at his core this is a primary motivation.