First of all, Carter wasn't hated, because he was/is a decent, honest man, trying to do his best (in a way that didn't work, much as socialism never has worked).
Clinton lied constantly, and was immoral. He used his political position to habitually abuse women.
Obama campaigned as a moderate who would reduce the size of the federal government, stop wasteful government spending, and never sign any legislation containing earmarks. (He actually said those things, not once, but repeatedly in 2008.) He also promised to unite our nation. Now I ask you, can you figure out why anyone who voted for Mr. Obama in good faith would be furious with him?