I've got to admit I don't know very much about the Floyd arrest. I only understand that he was arrested for using a counterfeit bill and knelt to death despite he was subdued, as shown from the footage. I'm unaware of any history of Chauvin being a racist, nor he had racially discriminated Floyd during the murder. So maybe you could fill the gap in for me and convince me in the other way, how this case is linked to racism more than police brutality except that the victim happens to be a black man?
As for policing in the US, I'm aware that black Americans are 2.5x more likely to be killed by cops than white Americans, and I've explained this phenomenon in my previous posts already. Meanwhile, black people are also treated unfairly by the cops in many ways, for example they are more frequently pulled over and searched, they are treated less respectfully etc. These are classic examples of racism, not the death of Floyd with all due respect.