I guess? I don't think I've ever really stayed in a memes community where that's the case, though on Reddit I was largely in places like egg_irl and traaa, where everything was focused around a shared experience of a minority group.
Besides, it's not just the memes community, the memes is just where it appears the most blatantly and loudly. As the person above me said, it's an instance wide thing. ML is nowhere near as bad as Hexbear (or I have yet to see any targeted harassment campaigns against an instance for failing a purity vibe check come from ML, at least) but, as they say, "nobody hates leftists more than other leftists." Leftist spaces tend to have a bit of an undercurrent of only being welcoming to the "right kind of leftist." I used "decadent West" up there very purposefully. There's a bit of a vibe to ML that's less "uniting various leftist groups" and more "preaching The Good Word to those poor ignorants" proselytizing.



I didn't mean that as a literal quote but as sarcastic air quotes to evoke the exact imagery that you came up with. Although, I have actually seen a Hexbear or (what's the other one, Beehaw?) user use that phrase. Of course, they also said that only capitalist pigs die in China, so it's hard to tell if they were serious or if it was full commitment to the bit. That part of Lemmy is fairly indistinguishable from a leftist version of 4chan.
Like I said in another comment, ML has an issue common to many leftist communities in that old saying of "nobody hates leftists more than other leftists." And that can manifest as behaving like more moderate leftists (not liberals - actual leftists) may as well be centrists or conservatives, or treating Europe as being just as bad as Trump's regime. Purity tests and trolling rather than the mutual cooperation that Cowbee posted.