Its just an instance where tankies can exist in an echo chamber without having to critically think.
If you want you can read some of my comments here and watch these morons make fallacious argument after falacious argument, put words in my mouth, and project some person who makes similarly bad takes which exists inside their head onto me: https://lemmy.today/comment/17304484
Edit: there’s also this thread: https://lemmy.today/post/32415724/17304693
"Nooo you can't make fun of me for randomly calling china authoritian its supposed to be the natural, obvious, biological, truth of reality you can't expect me to back that up with a source nooo!"
But the consensus on the site if just that, a consensus. It wasn't just arbitrarily decided, there was a lot of discussion and "struggle sessions" over the idea. Which is the opposite of an echo chamber, the group discussing an idea and then coming to a consensus, even if some individuals in the group disagree with the consensus, they'll accept it, is exactly how a group should work.
The term "echo chamber" is used so much by libs that it loses any sort of potential meaning it could've had. Like "authoritarian" it just means "bad thing me no like."