I don't want to be blamed or singled out because of the behavior of people of my skin color, or of people who drive a car like mine or wear my style of clothes or any superficial characteristic. You've had some bad experiences, but believe me, some people have had worse experiences with white people. We are all responsible for our actions and nobody else's. If you want to classify people by race or whatever, that's your responsibility, not the responsibility of some criminal who happened to be of a particular race you don't like. It is a sad fact that we live in a dangerous world, and it has nothing to do with the color of someone's skin.
Bad people do bad things, and bad people come in all shapes, sizes and colors.
As a woman, I am extremely safety conscious. I avoid groups of men and lock my doors whenever anyone approaches my car, male or female, black or white. Never put yourself at risk just to avoid hurting someone's feelings, and never, ever let anyone into your house if you don't feel comfortable. A person can get over hurt feelings. I would like to thank everyone for the responses to my question.