They are engrossed, not in choosing to act but in acting . In these representations, personal agency has shrunk down to a point. It is a point where there is no character, no ethos, no complexity of thought, no choice. Censorship is no use. In fact, it is a really bad idea, for more than the Constitutional reasons.
Ugly media is to the culture as pain is to the individual.
It is a warning signal that something is wrong and needs attention. Your hand is on the stove, your body has been invaded by microbes, your kid is experiencing total powerlessness. The function of pain is to get our attention. By the way, gun control is not the solution, either. My point is, if kids take a notion to blow something or someone up, guns are not the issue.