Then the police wouldn't be shooting "unarmed" black men, now would they?
Does it not occur to you that black neighbourhoods are over-policed. That police forces are looking for guys to pull over and ticket? Ferguson residents complained about "taxation by ticket", and the ways that the local police force targets blacks in that neighbourhood.
There are so many ways of being policed in such a way that would make black people come into contact with police that has nothing to do with young black people doing things that young white guys aren't doing.
Your comment reminds me of what took place here when I was younger.
I grew up in a white suburb with a very small section of blacks on the other side of Broadway; less than a dozen streets or so.
Reading our local paper, blacks started to complain about the crime in their area, and made claim that police don't patrol in black neighborhoods. So the Mayor stepped up patrols in that black section of town.
About a year or so later, I once again was reading our local paper, and the blacks were complaining again; not because of the lack of protection, but because our courts were filled with black defendants and they made up less than 5% of our population.
It's a damned if you do damned if you don't situation for our law enforcement. If police ignore the bad guys and the neighborhood goes to hell, the blacks complain nobody is helping them. When they go to help and have to get rough with the bad guys, the blacks cry police brutality and discrimination even though the police are creating a safer environment for those people.
The Ferguson effect (as it's called) is evident across the country. Blacks have made it so police are afraid to do their job. They don't do the extras anymore. Sure, if you call them, they will respond, but they don't do traffic stops anymore. If they see a drug deal going down, they don't even bother with it as long as it's not called in by a citizen. If somebody tosses a bunch of garbage out of their car window, it's not the cops front lawn so don't even bother.
Gun and violent crime has risen in many cities since Ferguson. That means more dead blacks in a couple of months than the entire police force across the nation could produce in a years time. Blacks are clueless that they are working against their own cause.