Man, take a step back. You're seriously taking the State line on this??!
The reason Chauvin "HAD" to keep him in that position is because a poor guy was laid off because of state covid policies, then he tried to swindle a pack of smokes. Then the Keystone Kop agents of the State escalated the situation into putting the guy face down in the street in front of a gathering crowd.
And yes, this cop was just doing his job, as evidenced by all the other cops supporting the arrest and methods. I don't think racism had anything to do with this - this is a problem with the enforcement edicts of the State. Agents of the State murdered a citizen. Period.
It's kinda sick to break it down to the last few minutes as a justification for why the cops "had" to do anything.
This video seems very similar to the Tony Timpa video. No one would watch that and assume that the officers didn't kill that man, but the misdemeanors they were charged with were dismissed.