The reason it is so inscrutable is because--as with all things liberal--they have ascribed motives and arguments to the RW that none of us have every made so we do not recognize when thrown back at us.
No one on the Right claims Stop-and-Frisk laws are meant to target blacks...not even when we meet in our smoke-filled rooms. In fact, I would hazard a guess most RWers oppose S&F.
Now, one must ask, however, if a neighborhood is designated for S&F is the motivating factor race or violent crime statistics. If the latter then one must ask why the former would also seem to be in effect. Is there, perhaps, a "culture of violence"?