What would New York even do? People here don't believe in firearms, let alone violence. In reality the city would starve within a couple weeks due to siege/blockades if it really united and tried to revolt.
I don't know what that means. Guns are highly correlated with leathality and people believe in them completely. Generally, a population may not want to have possession of guns. That quickly changes for a large percentage in survival mode. Effectively, many criminals are perpetually in survival mode.