If this isn't an accurate representation of a large portion of Americans.
They see themselves as the badass hero stopping The Scum from fucking up everything around them, when really it's just these guys fucking up everything around them in their thirst for vigilante justice.
Sorry for seeing some media and commenting about the similarities between it and situations I've experienced firsthand in my offline life
Now for another observation you won't like: this type of person is not representative of the entire country, and it's weird that you jumped to that conclusion
In Living Color, Liquid Television, The Simpsons when it first came on. For some reason these little separate groupings of people with no connection at all to one another just all decided it was okay to show genius weird shit on TV, all of a sudden, when before that it was all just "Cheers" and bullshit and whatever.
A lot of it came from Fox being the young upstart network that wanted to make waves. They started green lighting shows that no other network would put on air and it let the writers cut loose and even make fun of Fox as a network. It made them cool and less stuffy, while letting them grab onto the Gen X/Millennial core audience group. Lots of other channels did the same thing and were successful, but rarely to the degree of late 80s - early 90s Fox.
And because the random strangers he bothers tell him things like "Hey look, we don't want any trouble, okay?" instead of to go fuck himself and mind his business.