Regardless of the positions held, I think that moderators and admins have a lot of control over the discussion on reddit, and a lot of subreddits and users just get banned for no good reason. There is a selection bias at play.

Just because an opinion seems to be popular there does not nessisarially mean it won the "marketplace of ideas". It's more like the "warzone of powermods". I think a lot of social media sites go through a phase of controlling discussion to suit powerusers, but this comes at the cost of losing long-term social capital.

I mean we are in the second term of a trump presidency. The climate on reddit is very left wing but in the real world, people are voting right wing (or more likely not at all). Reddit itself is now an echo chamber, and r/Conservative is just the echo chamber within the echo chamber.