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Tom, I have to disagree with you here on a technicality.
I've always defined racism as belief in one's superiority or another's inferiority due to race or ethnicity.
I am not racist; I do not believe that my skin color and ethnic background make me superior, nor do I look down on anyone else for the same reason. I will admit to some very strong prejudices, though, which I won't get into here. Everyday experiences here have conditioned me to judge certain people in some situations based on outward appearance immediately, and only after getting to know the person can I discard that original judgement.
Everyone has prejudices; that's an unfortunate part of human nature. Only a select few of us are racist (KKK, Aryan Nation, Black Panthers, HardTech, etc.).