They're trying to denounce the racial aspect of likelihood of being targeted/prosecuted, by going "African Americans are more likely to be involved in crime already" - which is also inherent on racial biases and profiling in the police and criminal justice systems.
The point is that they can't jump to racist dog-whistles and then pretend like race isn't a factor in targeting to begin with.
The point is that they can't jump to racist dog-whistles and then pretend like race isn't a factor in targeting to begin with.