You have two different issues.   One is protecting the people of the neighborhoods, the other is a protest against police brutality.   Your making presumptions from your perspective without really knowing more than what you see on TV.    You're not black, your don't live in the neighborhood, you don't know enough to say such a thing.    Honestly, neither do I   , But I know how a mother mourns the lose of a child, or child mourns for their dead mother or father.  

The point is that you have to make a commitment to the goal.