So, in your scenario, riots cannot be put down by any means that have teeth.
So the riots, in short, cannot be put down.
Which means total anarchy: Murder, robbery, rape, arson, looting.
And you are okay with all that.
This comes from someone who believes in a nation of laws, not men.
It may be difficult, it may be expensisve, it may be a challenge, but government has to act legally or it loses all credibility. Killing rioters and looters is NOT LEGAL