There is a big contingent on Lemmy that has constructed an enemy category called "liberals." They spend a lot of time talking to each other about what liberals believe and how liberals are, and almost all of it is just how stupid, weak, evil, and pointless liberals are. It's actually exactly the same thing that MAGA people do about... well, about liberals.
You can actually see how it operates in this meme. Pretty much none of the "liberals" on Lemmy have anything other than horror for the killing that's happening in Gaza, or are in any way upset about Charlie Kirk not being around anymore, but it's real important to their worldview that they constantly gather around and tell each other about how evil the liberals are, and so none of them will bat an eye at a post like this. Even if they don't really factually agree with it, it feels really good to experience the meme and talk to one another about how true it is.
Why they do this is deserves careful study. It's not immediately obvious but if you keep tugging on the thread and looking carefully at how they perceive the political world and why, it carries some key insights.