Just like all their other bullshit. They claim we're right-wing, they claim we aren't LGBTQ+ accepting, they claim we support Putin, yet no matter how many times we ask, never once have they ever bothered to pony up any evidence to back up these wild accusations.
The issue is that the liberals have figured out you don't need evidence. You just need more people to repeat a message often enough for it to become the accepted """truth""". It doesn't have to be the actual truth but you create it by making people believe it through repetition.
It's propaganda, and it works. Nobody is immune to it including us, but the more switched-off to propaganda that people are the more susceptible to it they are. And the vast majority of people are switched off to it.
That's why they defederate us though. They create a chamber in which we don't exist, and then repeat the propaganda without opposition where people believe it.
They did the same with historical revisionism, like the ribbentrop pact, and look at how almost every lib repeats that ahistorical shit now.
Social media pillarisation is about getting communists away from susceptible liberals, so that they don't become communists and so that communists don't interfere with their propaganda by injecting the actual truth.
I think since federation I've only seen a lemmy lib post a source once, and it was a link to wikipedia. They are allergic to providing proof/sources, whether it be a serious political discussion or petty federation drama. I saw a lemmy claim they received transphobic comments from a hexbear. A mod from here replied to them to provide the username so they can be banned. Of course the user "couldn't remember" the username (can't you just check your post history?).
They're presumably much more used to people just believing the shit they say, and likewise they're more used to just going along with whatever they hear. Many of us are commies in deeply capitalistic countries and we're used to people not just going along with what we say, we're used to them not believing us, expecting sources, we're used to them trying to find any way they can to dismiss the sources we provide, and so on ...
In regards to de federation I did half a dozen digs. In those dugs I found 5 people inventing things and one who was telling the truth somewhat correct, but since they didn't get the vibe they misinterpreted the meaning of it. After that I stopped and took up the concept of: "If someone did something to you then you better link it in the fediverse, else I think you are lying".
During the de federation of one instance I found a soldier who insulted for being an US narc. That guy claimed he got deaht threats for correcting people, not for him literally being in the war of aggression organization with genocide and collateral damage as a side dish.