You're being deliberately obtuse when you ask what that means.You are being vague when you say "seen this happen repeatedly without any consequences". What is, this?
When there is concerning reason to suspect it. A cop who happens to be white and a suspect/victim who happens to be black is not enough to assume racism. For reasonable people.
Black people being killed by police when they weren't doing anything to warrant it. John Crawford. George Floyd. Larisha Thompson. Alton Sterling. Eric Garner. Phillando Castile. Laken Riley. Fanta Bility. Ma'Khia Bryant.
At what point does a community of people with every reason not to trust the police who over-patrol their neighborhoods and ding them for expired inspection stickers more than they arrest drug dealers have the right to suspect race has something to do with it without you calling them brainwashed?