That’s one of the problems with the Internet. It amplifies minority extreme voices but silences (by simply not attracting / encouraging to post) the majority balanced ones.
Out in the real world, everyone sees extreme, dramatic teenagers and young people (I was there too), but you look around and see all the chilled out older people who used to be that way and got over it and you know they’re just passing through a phase. Online, age is invisible and the chill people are absent or not motivated to jump in and mix it up, so you get a bunch of extreme people on both sides yelling at each other.
And then they move on and quit participating.
Partly ties back to the end of history illusion – people assume their views now are the same ones they’ll hold forever. Rarely are, though.