I think that would generate problems of its own, Pete. There is no faster way to breed resentment and anger towards police than profile orientated stop and frisks. It flies in the face of presumption of innocence, and can make already isolated communities even more disdainful of the law
I agree that if used incorrectly then stop and searches of a specific group can cause its own severe issues, but that shouldn't automatically halt it.
Better communication with the community and a levels transparency of the needs for searches would, to an extent, would help negate issues.
Understandably 'profiling' can be seen as wrong (and used wrongly), however sometimes it's based purely on the statics that are evident.
"Are you stopping me because I'm X?" Well sometimes the answer is justly yes - it's not racism; rather it's dealing with the circumstances.
If there was an issue with middle-aged white women who were committing violent crimes in a certain area, would they not be liable to be stopped?
If a certain demographic are involved in specific crimes (violent, drug dealing, theft et al) within an area, then that group should be focused on.