What about when a black hails a taxicab and the driver passes him up and picks up a white passenger down the street? Is that racism? Many people assume that it is but it might not be any different from a physician using race and sex as an estimator for some other characteristic. Ten years ago, a black D.C. commissioner warned cabbies, most of whom are black, against picking up dangerous-looking passengers. She described dangerous-looking as a "young black guy ... with shirttail hanging down longer than his coat, baggy pants, unlaced tennis shoes." She also warned cabbies to stay away from low-income black neighborhoods. Cabbies themselves have developed other profiling criteria.
There is no sense of justice or decency that a law-abiding black person should suffer the indignity being passed up. At the same time, a taxicab driver has a right to earn a living without being robbed, assaulted and possibly murdered. One of the methods to avoid victimization is to refuse to pick up certain passengers in certain neighborhoods or passengers thought to be destined for certain neighborhoods. Again, a black person is justifiably angered when refused service but that anger should be directed toward the criminals who prey on cabbies.
Not every choice based on race represents racism and if you think so, you risk misidentifying and confusing human behavior. The Rev. Jesse Jackson once said, "There is nothing more painful for me at this stage in my life than to walk down the street and hear footsteps and start thinking about robbery -- then look around and see somebody white and feel relieved."