Because Romney was right - roughly 47% of the people get a net handout from the government and they see no reason to not get it or to vote for the guy who might cut it. As long as the gravy train keeps coming, they love him, even if the rest of the country is falling apart around them.
Yep. Future historians are going to look at that Romney 47% comment and conclude he was one of the smartest guys who ever lived.