I have no hatred of Southerners at all. Some of my best friends are southern --- even some relatives. I also have no fear of anything southern. I like the south. But I do have a significant amount of animosity to people who distort history and defame many of our greatest leaders for ugly purposes that will go unmentioned here. (You know exactly what I mean.)
I also hold historical contempt for those so-called leaders of the Confederacy. They were a small handful of wealthy aristocrats who distorted the law and deceived their followers in a patently self-centered attempted to break the Constitution and the Union for no other reason than to protect and expand the evil institution of chattel slavery from which they stood to gain profit. They were evil people.
Anger and hatred are very commonly the response from someone confronted with a point of view different from his own. Particularly when the individual is, at least unconsciously, aware of the fundamental implausibility of major portions of his own world-view and suppression of that awareness requires a great output of psychic energy. It is called "having a low threshold of tolerance for cognitive dissonance".