Nothing.
They are doing exactly what their master want them to.
We even have cheerleaders (with knee-pads) right here on FR...
That’s just silly. Not every situation is a rogue cop going off the reservation to hurt/maim/kill an “innocent”. Many of these “knee” padders you say are simply pointing that out. I doubt any “knee” padders will defend this situation at all. But hey feel free to fling that vile language, maybe someday in reality it will be true.