There definitely should be, this is the problem when a large chunk of people in these protests don't actually care about the reason for the protest. Which is sad because the root of the cause is a just one, at least in my opinion.
But the other issue is that when someone like Kap and other NFL players chose to protest peacefully they were completely destroyed in the media. I'm sure many are thinking well what is the right way to protest, it should be the former but the backlash for that was insane.