I fully expect police officers in the United States to be able to give lawful orders to disperse rioters and prevent our cities from looting and destruction.

If you don't want to be told what to do, don't riot, loot, and destroy.

If you're trying to say that our citizens can just burn our cities down, and there's nothing that can be legally done about it, I really don't understand you.

In all the clips you see, they're no longer peaceful protesters. All of the clips cut out all of the context. That's the piece you're missing. Peaceful protests happen every day and the police don't order them to disperse. Police only order them to disperse when they've become a public safety hazard.