Do you worry about the games your children might be playing?
if the answer to this question is yes then you are a bad parent, maybe you should talk to your children, engage with them, find out what they are playing, dont buy them Grand Theft Auto and complain when it contains car theft and murder (Its called Grand THEFT Auto and has an 18 rating, not happyville and the adventures of mr do-good)
Would parents buy little Timmy The Exosist, Deby does Dallas, Saw, ect. no they wouldnt because they are bad and rated 18, so is GTA use some common frigging sense.
Oh and if you answered yes to the last question then it is you and you alone who is responible for the rise in violence because you are a bad parent.