I always see this as a flawed argument. There's plenty of violent media available through the news, which isn't age rated. Granted it isn't graphic, usually, but it is still available and often depicts more violent acts. Does that make us all bloodthirsty? Also lets not forget that throughout human history there have been worse acts and people have been subject to them, children being no exception. I'll always be a skeptic of this line of thought, because it's such a post-hoc fallacy.

In a hurry so can't formulate my ideas properly.