Why we are so violent

I think probably that the weakest among us, or any of us in our weakest moments, will revert to or resort to the lowest level of interaction we feel at a gut level is acceptable. So even though you and I know and act better than our violent games and movies, our gut level is affected by them.
And in our weakest moments, that gut level probably comes into play. It's not maybe fun to think we have to clean up our act just for our weakest people or our weakest moments, but I think that's what it will take to heal our society.

So in a very real, though subtle way, our realistic violent games and movies enable us to kill each other much more than we would without those simulations and enactments.