Conservatives need to change the argument. Every time somebody is accused of racism the argument needs to be changed to if a person approves of some blacks but disapproves of other blacks are they racist?
I don't know much about this particular case, but in general things are worse that even what you described.
If anyone (even a black) disagrees with the black liberal elite, that person is a racist. Against raising taxes? You are a racist. Favor charter schools? You are a racist.
This corrupts our society, shuts down free speech, and because of the boy-who-cried-wolf effect, actually hides true racism.