I don't think it's a left/right issue. I think it's establishment narrative vs original research issue.
We have plenty of lolcow threads on lefties and righties. But they aren't typically covered by the MSM. So they primarily rely on original research.
However when an establishment narrative is made many posters base their perception on that external research. For example. Trump, Tate, Peterson have all been portrayed negatively, even murderously, by the MSM. Those threads exist in lolcow.
However Biden, with his innumerable gaffes, falls, creeping on children and women, there is no lolcow thread. Because there is no negative MSM narrative to drive the emotional impetus to create one.
TLDR: My theory: Some people on here are NPC's