But we can find plenty of videos of US police doing exactly that.
Here's a video of police killing a man. He starts off calmly answering their questions, obeying their stupid instructions. He gets frustrated ar their bullshit. They beat him to the ground and sit on him and yell at him to stop struggling. He can't breathe - of course he's going to struggle. More police turn up. They asume the original officers are in the right and this guy is viole t on drugs, so they sit on him too.
My objection is when people in USA think USA is as bad as that.