[fjsolwmv]

Video games and movies and internet and junk food obesity have had a powerful impact on "defanging" people who might otherwise be bored and angry out in the streets. Now the aggression is channelled into shitposting online and only occasionally shooting up an office/mall/school

[irrational]

I would say free widespread online porn has much more of an affect than the other things you listed.

[fjsolwmv]

Those are internet movies.