It just seems to me, I may be wrong, that you have an inflated opinion about gangs an how big their role will be outside of the city. I don’t see 100 gang bangers rolling up a 1/4 mile drive to a farm and not taking enough fire to make em tuck tail and run.
I don’t think the govt will be defending farmers by keeping the gangs in the city. It’s just good sense to keep em where they can’t resupply their ammo or food or fuel or numbers. These fools will raid alkyl the liquor in the city and popping off rounds like they’re in endless supply.
You can’t have a city full of starving and scared ppl without them turning on each other. Keep them surrounded and keep em in.