Rioters and looters should be shot by the ordinary citizens whose lives, persons and property they threaten.
Don’t rely on the government to rescue you if rioters are coming at you: the police force aside (who will be restrained in any response to riots if only because of local politicians) the government, under the influence of so-called “progressives”, often cares more about wrongdoers than wrongdoing.
No one is going to shoot looters and rioters, at least in democratic strongholds and they will only attack those “who don’t belong” if they wander into those strongholds.
I watched Ferguson burn, personally. No looters were shot, except by other looters. The Oathkeepers showed up one night, and got the hell out because they were not wanted there and it was crazier than a Chinese fire drill.
The rioters and looters know their boundaries. They will not venture out into those areas where their life expectancy diminishes with the distance of the city lights. They hate the armed free peoples but they respect their ability to turn superior firepower on them. They have yet to test the willingness factor but I don’t think they will.
In short, if you are not living in a large metro area, you are most likely safe as can be.
The police are not going to shoot looters either. The DOJ will make sure of that.