Fundamentally, the problem with that approach to policing is that racism is inherent to human interaction. Without training to recognize it, unconscious bias will set off a person's "spidey-sense" because they perceive someone of a different skin color to be "out of place" subconsciously, which makes them keener to look for reasons to stop at a conscious level. This is to say nothing of people who know they're racist and don't care; I'm thinking specifically of people who haven't been trained in unconscious bias yet.
As the officer, you're not even likely to notice you're doing it. As a person of the "wrong skin color" driving through a high-rent neighborhood, you'll start to notice real fast that your commute is disrupted all the damn time.
My personal story: I'm white, but I used to drive a beater with crappy temperature control and was taking a new route home late at night while wearing a stocking cap. Got pulled over for ostensibly making a left on red (on a deserted road in the middle of the night, when I'm pretty confident the light was green). If the officer's real reason for pulling me over is that I looked like I was casing the neighborhood for a place to rob, I don't really blame him; I was dressed like one of the Wet Bandits from Home Alone. ;)
As the officer, you're not even likely to notice you're doing it. As a person of the "wrong skin color" driving through a high-rent neighborhood, you'll start to notice real fast that your commute is disrupted all the damn time.
My personal story: I'm white, but I used to drive a beater with crappy temperature control and was taking a new route home late at night while wearing a stocking cap. Got pulled over for ostensibly making a left on red (on a deserted road in the middle of the night, when I'm pretty confident the light was green). If the officer's real reason for pulling me over is that I looked like I was casing the neighborhood for a place to rob, I don't really blame him; I was dressed like one of the Wet Bandits from Home Alone. ;)