Is is though? Living in the Houston Metro area, we have plenty of very well off people from all ethnicity's because we have all the big players in teh oil and gas market and the engineering firms to support them. I don't see an abundance of Audi's / Ferrari's / Maserati's / McClaren's, stopped on the highway because the driver is black.
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Also don't see black shoppers harassed while I'm at the mall, but then again I don't live in a poor area.