That's probably the worst article that I've read in the last year.
>Research on exposure to television and movie violence suggests that playing violent video games will increase aggressive behavior. A meta-analytic review of the video-game research literature reveals that violent video games increase aggressive behavior in children and young adults. Experimental and nonexperimental studies with males and females in laboratory and field settings support this conclusion. Analyses also reveal that exposure to violent video games increases physiological arousal and aggression-related thoughts and feelings. Playing violent video games also decreases prosocial behavior.
https://en.wikipedia.org/wiki/Weapons_effect
I have wondered, assuming the effect is real, if the "problem" of media causing violence is even socially solvable if we are psychologically this sensitive.