Dude, you are not crazy. Hating niggers is actually quite normal and has been done for thousands of years, even in the Bible. Only in the last 30 years suddenly we are told that niggers are just like us -- and that create conflicts within you because you know that they are not like us at all.

On the other hand, you feel guilty for hating niggers because you are decent person who was brought up to be good person and you don't understand where all this hate within you is coming from. Keep in mind I'm not a mental health professional and I use the term crazy loosely - if you believe you are really crazy see a doctor.

Did a nigger cause you any trauma?