@busdriver11 - I even do that with names. I tend to not like names that I associate with people I didn’t much like or respect in the past. As in, I would never have named my kids certain names not because they aren’t good names, but because I had associations with them that were not positive. I think some of that is just human nature.
Now, of course, I don’t think I do that with ethnicities…but I’ve been lucky enough to have traveled and encountered a variety of ethnicities, so maybe that’s why. I can understand how somebody who has never traveled or been exposed to other cultures might develop erroneous preconceived notions from one or two negative encounters. I’d like to think that good education and exposure to positive images in mass media will cause this sort of thing to subside.