That is a hard one to figure out. But the people who voted for Obama are selfish turds who want something for nothing. The fact they bypassed principle proves they had none in the first place.
This is above all, most glaringly apparent among the black population, although to be fair, they've been monolithically voting for the Democrat ticket en masse for a long time now.
Still, it's upsetting to see an entire racial demographic in this country so lopsidedly oriented toward one side of the political spectrum. Of course, it's by design. No other racial group in the nation comes close to the lock-step politics of the black community.