Something obvious just came to mind. How about adding the option to always be able to kill a unit of population if it chooses not to work under police state? It annoys me that when im running a very nasty police state that citizens can get away with choosing not to work. What the? This is fascism my friend, its off to the camps for you.
This has historical precedent, im thinking the common purges of Stalinist Russia. As Hannah Arendt, the author of the huge work, the origins of totalitarianism claims, there was no unemployment in Stalinist Russia. A job was found for you or you were purged as an undesirable.
Or an example from communist china, the tiananmen square crack-down. You have a large number of protestors calling for democracy and an end to nepotism, and the government decided to use the military to force them into submission. Game equivalent of a rioting unit (or two) of population that was dealt with bringing back stability.
So yeah putting this in would be a superb idea. Keep any rioting populations in check under the harshest of governments. Because thats an essential part fo what they do. Keep people in check.