Obama has messed the bed for more than just himself. America has lerned that voting for a Black man solely based on the fact that he is Black, may be the enlightened 'progressive' thing to do, but it rarely works out to be the 'smart' thing to do.
Whereas before Obama there woulld have been many White and Latino people who would vote for someone like Jackson or Sharpton, just to prove a point, now, post Obama, they are going to have to give it a second thought.
A person who has made himself by being radical, racial, utterly disdainful of everything 'American', and Black-centric, does not stop being all those things just because America give them a public office.
And that, is the lesson learned from his majesty Obama.