I do t think they’ve ever coherently articulated a problem other than “it is police open season on blacks” (thoroughly disproven) or a remedy other than “kill all pigs” and “pay us trillions of dollars for what happened to great-great-great-great-granpappy.”
If they’d have protested police violence in general instead of only police violence against blacks, they could have made a real difference.
But they never wanted to make a difference. It started off as a Kaepernick contract negotiation tactic and ended up as nauseous virtue-signaling by morons who didn’t realize that it was all a fraud to begin with.