Fun fact : it's my first ever post on any lemmy instance/community 
...which is messed up..
Okay tbh I don't know if I should have posted this some place else or if here is just fine 
So I'm brand new here, I've joined as lemm.ee was going to shut down. I only chose Hexbear because of how big and active it is, and of course for all its shade of leftism (being far left myself) but tbh that part was just a plus for me, what I wanted more was an opened enough instance, an inclusive one with enough peace of mind (not having to deal with unhinged/oppressing posts/comments daily).
But I started noticing that actually Hexbear had been defederated from some big instances like lemmy.world, upon trying to understand why I stumbled upon lemmy.world ~~BS~~ post explaining they did it for preemptive reasons (wtf ๐), obviously I just dismissed lemmy.world entirely and continued enjoying my time here. But then I noticed other instances like Blahaj blocked Hexbear as well and a bunch of others, I never found out why.
Then, while trying to understand what's with all the defederating I stumbled upon a lot of negative noise against Hexbear, claiming you lot are doing some horrid stuff like war crimes denial, trolling, hate speech, spreading pro-Russian propaganda (like anti Ukrainian stuff don't misinterpret me here, I'm fine with anti-western views or western propaganda skepticism), so much so I don't really know if what I read was some kind of fascists trying to slander this place, or people confused about Hexbear political views, or if it's linked to some Hexbear history I'm not aware of... It's just weird because so far I haven't encountered anything I could hold against this instance, for all I've seen you're all sweet and making nice content, haven't seen anything unhinged, but what makes me uneasy is this defederating thing, I can't help but wonder why.
I'm really confused. Can someone explain to me what this is all about ? Is it just some right wing noise, some unknown drama or what ?
Edit (in case any of you see it): Thanks a lot everyone for all your answers, kind words, jokes, emojis and for being so welcoming. What you all said was very informative, and most of it I sadly expected. Having taken a liking to lemmy I knew that whatever I'd learn it'd be a cause for concern, it saddens me that several instances, big ones at that, would just make more room for the far right by suppressing leftists and spreading hate. As always in any such case I can't say I'm surprised but it worries and disgust me nonetheless. Anyway I'm glad I found this place :)
I haven't been here as long as many but it seriously is like an oasis of kindness for a queer leftist compared to any other online group I've seen. People here aren't kind to Nazis or nazi-adjacent posters though, as it should be.
People who complain about hexbear on other instances are nearly always liberal or further right trolls who come and post some obvious bullshit, get berated for sharing reactionary propaganda, then often get banned because they get mad and show their true racist or transphobic colors and start using slurs or generally become toxic.
Pretty much anyone I've ever seen come and argue in good faith, with a real misunderstanding or false info, or just something that they disagree with here will be met with reasonable clarification.
The moment someone starts posting about "hexbear bad" I immediately assume they're a nazi
And for once this isn't even an exaggerated position. Moderation log backs it up in at least 90% of .world "Hexbear bad" posts. Almost murderous homophobia, nazi apologism, gleeful support of genocide, you can see it all in the logs from the banned posters who go to cry about how we're mean :(