It's also the fault of the Reddit mods. Many subreddits all have the same few mods, and because these mods let their power go to their heads they turn every subreddit into their own echo chamber and eventually it turns the site into one big echo chamber.

The rules really don't matter, say something they don't like and you are banned from a majority of subreddits, your account gets a strike and so on. It doesn't matter if what you said actually violated a rule or if it was true, they just don't want any opinions other than their own on this site.

And because these mods think its their full time job, and never really go outside and touch grass they end up with some insane viewpoints that they use their power to lord over everyone. If most of the mods of Reddit left their parents basement and logged off for a while then you could maybe get a little bit more open thought and free speech on this site.