Like everything else this comes back to a PARENT'S accountability and responsibility.
I agree with some points on both sides of this article BUT as a parent I have to educate my son on what is right and what is wrong, what is real and what is fiction.
More importantly I must reinforce these teachings by words and ACTIONS if these lines become blurred. If my son slips into a "gamers rage" I have to remove the source of the rage from him, if he cannot control it. Same thing if he isn't home on time - there should be consequences for his actions or in-actions and it is my responsibility to be his moral guidepost as an responsible adult.