I'm curious, exzel. While I really don't like violence in entertainment and agree that it has a desensitizing effect, I have never seen any reliable study pointing it out as a primary predictor of violence. Do you have access to such data? If so, please link. I would be very interested to see it.

Because there is definitely a correlation between high gun ownership rates/lack of social support/poverty and high homicide rates, and it makes sense to go with the data when making new restrictions.