I know this is probably preaching to the choir, but ...
If a "white" person tells black leaders and people they have serious problems, we're denounced as racists.
If a black person tells black leaders and people they have serious problems, they're denounced as Uncle Toms and worse.
To the degree "whites" have been fleeing black-dominated areas, they're fleeing the trouble, corruption, and danger Carthan details, not black people as such (IOW, if the troublesome, etc., people were "whites", those who have fled would have done so regardless of race of those who are troublesome).