I'm sure that was a painful experience for you, Kitty -- no one likes being made fun of for any reason. But since you know first-hand how hurtful prejudice can be, why do you continue to practice it?
All Chinese people are not identical; neither are all black people. To react to one person because of treatment you received years ago from another person is somewhat less than rational. I understand it may seem like an automatic reaction by now, but that's the kind of thing you *can* change, if you want to and if you're aware of it.
Just a thought
PJ