Well, media may be guilty of a few wrong beliefs. E.g. a person being knocked out is not a big deal -- except it is. Generally, however, basic empathy should prevent someone being beaten half dead.
It's possible immersing yourself regularly in a fantasy of mass murder may give you the courage to do it. But, so does merely talking to your fellow incels. Fantasy is fantasy, games or no games. It doesn't matter how people run it through their heads.
I understand belief in the perspective. But, the sad truth is, it's just altogether too easy to radicalize young men nowadays. Before the internet, fellow basement dwellers would have never met.
