Start with reparations, then submit.
The bad guys aren't going to "fix it", and they aren't going to be persuaded or reasoned into "fixing" it. Human nature is built on brute force. Sometimes that nature is held back by functional social systems; churches, courts, etc. But the law of the jungle is always lurking just below the surface.
Our social systems are 95% liberal, and will not admit that they aren't working, so will provide more of what caused this mess (affirmative action like reactions, political correctness, failure to admit there is a cultural problem with blacks, etc.), rather than the tough hand that is necessary to bring it to heel.
And since he was a black muslim, they will have to be “protected” too.
I dream of reparations. Just think, there will be 10 million Escalade orders the first day the checks are delivered.