I am curious of your insight as to why. I thought drug use and dealing pretty much crossed racial lines.
Disparate impact will be the argument the black SJWs will use, for dope dealing is racially well out of proportion.
Disparate impact is no why crack cocaine weight is the same as powdered cocaine, although it was the drug predominately favored and sold in the black community. Heroin has outpaced it now by leaps and bounds, but in urban communities, the story is by and large, whites go into city to buy heroin from black dealers.