The only “solution” that comes to mind is too terrible to contemplate.
But in the meantime, I think bending over backwards to constantly declare that all aspects of black culture are good, and admirable, and praiseworthy is perhaps not advisable.
Likewise, making a big effort to reject white western civilization and declaring it to the root of all of our problem is also not advisable.
We cannot really change people. But we can focus on aspects of culture which lead to success and not failure.
Ultimately, you cannot find one black-run city in any country, nor any major country, regardless of how long it has been independent, that is anywhere close to being well-run.