Given the lopsidedness of the violent crime statistics, you might want to be use more "rational discrimination".
I know the social justice crowd thinks it is horrific that an older white man would cross the street to avoid passing by a gathering of young black men, but in my mind, it's not racist, but self-preservation.
Of course, I also cross the street to avoid gatherings of imitator young white men with their ballcaps on sideways and britches hanging half-way to their knees.