It's reddit. The chances of mature conversation are close to zero precisely because it's largely populated by edgy teenagers.

edit: There are many smaller communities on reddit that do have mature conversation and content, they're just vastly outnumbered by the edgy teen clickbait content we see on the front page.

I'm convinced that subreddit will eventually get banned. Some members are radicalized and I see calls for violence very frequently.

It seems uncharitable to assume people are analyzing society through a Marxist lens for "gasps". I personally believe that Marxism is a useful tool for understanding the interplay between the powerful elites in our society and the state. I also have a degree in political science (in addition to my CS grad degree), so I feel confident in saying that I'm not an edgy teen and that I have the academic background to apply Marxist analysis to contemporary issues.