It is impossible to conduct the types of investigations we need to conduct without racial profiling. Profiling is necessary.
As a gay man, I have been unable to give blood to the Red Cross since 1984. I am not HIV positive. However, when the blood supply was becoming infected in the 80's, it was WISE and JUSTIFIED to refuse donations from gay men. I didn't like it either. I don't know why, in light of today's technology, that this still exists, but it DOES. I have NO WAY of proving to a Red Cross screener that I'm not HIV positive, and have no NEED to deny who I am. So, I'm profiled, and I'm denied.
Harrassment is another story. If I'm called mean names by people, that's not profiling. But when I'm told "NO" or more questions are asked about my background, I don't object, I accept.
The reality of the world today dictates some things that may not be politically correct. But political correctness doesn't always save lives.