Racial profiling is illegal. We solely stop people based upon reasonable suspicion or probable cause of criminal activity. It is not acceptable, it is demoralizing. To keep an eye on someone who looks out of place is not racial profiling in my opinion unless I take action against that person. Racial profiling is against ones Constitutional rights.
Fourth Amendment protects subjects from illegal search and seizures absent probable cause.
Younger black males fit the stereotype of being involved in criminal activity. As an older black male, I don't believe I experience this too often. We don't know why. I can't read their hearts. I think racial profiling has most often been associated with African Americans.