Is racial profiling immoral because it is ineffective? For instance, would the racial profiling of blacks become increasingly justifiable if blacks increasingly became criminals?

I've argued for an affirmative answer in my response to question 2466. This appears also to be the view of Joseph Levine (response to question 2535). If these earlier responses leave you unsatisfied, then please write in again and say what these reasons are.

We recently learned about racial profiling in my social studies class. While I disagree that it is unethical (and plain old incorrect) to assume that all people of a certain race are criminals, there did seem to be some logic behind the idea that I didn't want to bring up in class. I am not a racist and am in fact involved in closing the achievement gap in my school district, so although this question is definitely not PC, I am hoping I can ask it here without being judged: If statistics show that for whatever unfair reason (maybe because of discrimination), a greater percentage of people of race A become alcoholics or grow up in poverty or something, and statistics also show that alcoholics or people who grow up in poverty are more likely to commit crimes, then isn't it only logical to conclude that a randomly-chosen person of race A is more likely to be a criminal than a randomly-chosen person of race B? I acknowledge that there is definitely some circular logic going on here, and saying "he's of race...

First of all, I think it's good you bring this up. Better to discuss such matters openly than to pretend they don't exist. One should be clearer, perhaps, about the step from belief to action. Surely many things correlate with race, gender, or religion; and we may notice these correlations and form beliefs about them and perhaps even test these beliefs through large-scale data collection. In some case, the mere researching of such correlations is morally dubious, by fostering contempt for a group even while serving no legitimate social purpose. But in the case of crimes, there is a legitimate social purpose: deterrence and apprehension. So it is hard to deny that knowing more about the people who tend to commit certain kinds of crimes can be useful. But then how useful such knowledge will be depends on what one would be able and morally permitted do with it if one had it. In the case of serious crimes there is, I think, a clear presumption in favor of using such knowledge and hence of...