It’s a race thing in the sense that they’re trying to make whites hesitant to defend themselves against a black attacker, since they haven’t been able to confiscate everybody’s guns yet. They’re not studying black gangsters with illegal weapons, just law-abiding whites who keep and bear arms.
Back in high school, I took Physics. One lesson was on Vectors. Vectors have direction and magnitude. If your statement was a vector, I got to ask where are "they" going and what is the impact?