Because it's full of adult men who play a computer game made for and populated by small children.
I can understand an adult sitting down for an hour or two to unwind with a video game after work maybe once or twice a week but if you are an adult man and your entire life revolves around playing video games made for little kids, you are a fucking loser. Even if you are one of the lucky losers who manages to get thousands of views and dollars from other losers just like yourself.
that's a big problem nowadays too. Lots of people never grow the fuck up and so you are left with a bunch of poorly developed men who live their lives like a child would and have zero adult social skills. it's pathetic.