Hate is a strong word. I dislike President Obama's policies, not the man himself. But I think you are right that there are people who hate the President personally. I don't think that is the common bond between those who are voting for Romney or some other candidate other than the President.
Jack, would you also say that the commom thread that unites those opposed to Governor Romney is hate? Clearly, there are those on the left that HATE Romney the man, and everything he stands for. But there are also people who just don't like the direction he would take the country, his politics or his party, not the man. They don't like his stance on abortion, or tax cuts, or fill in the blank.