Starting at second 9 of the first video and 17 in the second video, you think the man with the long black hair and beard with the American flag is trying to "help someone get up"? I don't know what to say beyond that you are letting your politics literally cloud your vision.
Well FYI, what you needed to say was to look at the second picture. I was looking at the wrong part of the frame, under the arch and didn't see the staircase. Yeah, that looks pretty brutal. The police needed to be a lot more active in putting the protestors down.
But that, at best, upgrades the scene from a mostly peaceful protest torching vehicles to a violent clash with the police officer. Violent protests are not unheard of. It doesn't justify the idea that anyone was trying to irreversibly stain American history with the blood of the 2nd, 3rd, and 4th in the chain of command of the United states of America.
I mean, the fundamental argument here is that we shouldn't mix the actions of the people on the stairwell facing the police with the rest of the protest. That line of thinking applied to protests was roundly debunked in 2020.
It looks to me more like flag-holding-man throws it away to help someone get up, who then joins the protestors. The police officer in the yellow vest is under the arch on the right on the start, away from where the protestors are doing whatever they are doing. When a bloke in black gets up off the ground he joins the protestors too.
I don't think that is a video of protestors beating a policeman. If they were the video would probably have been more violent. I think the protestors might be helping the bloke in the blue jacket stand up at the start.
The intent of the mob is entirely comparable, at any rate. Protestors hurling stuff at police vs. protestors igniting stuff.