Erm, I don't think it would get so bad that gamers would buy first person shooters from organised crime groups. It would likely be some immigrant trying to make a quick buck.
I think the whole idea is idiotic though, I love how games get so much criticism but movies are fine. What makes a action movie with shooting and pig blood more acceptable than some comic violence blood pixels? For example Manhunt 2 was banned in a number of places because of how violent it is, but when you compare it with the likes of Saw which is almost on it's 6th title. It just doesn't make sense to me.
Manhunt 2:
Saw IV: