The folks in Mississippi got the right answer in their trial against a former KKK member. While I don't disparage anybody for thinking or believing (yes, even thinking like a Klansman is OK), acting on those beliefs when it requires or begets violence against a group is worse than most other crimes. Edgar Ray Killen was convicted of manslaughter, which is not murder, but at least he's going to answer for his sins.
I'm not saying this as powerfully as I could, but you get the general idea. Good Job, Mississippi.