Well, look at it this way. Suppose you were a white racist and you had an instinctive hatred of black people--I'm not talking about a rationalized hatred, but something that you can't explain; something deep down inside, that originated in your past. Now suppose you're a moral person, and your sense of morality tells you that your racist attitude is wrong, and shouldn't be tolerated. So you train yourself to do the right thing and show tolerance toward blacks, and even develop friendships with them, all the while never allowing your instinctive feelings to overcome your sense of rectitude and justice. Now suppose something happens, and your resistance is down, and your natural inclinations come to the fore, even for the briefest instant. That's what might have happened here--I say might because I don't know the situation well enough to make a positive judgement.
I suggest Alan Neirob get another job.