EDIT: I see that the “fediverse” link for posts has been removed.
It’s still there, just not when the post/comment comes from the instance you’re on. Even though the post is to a lemmy.ml community, it’s from lemmy.world so that’s where the fediverse link goes to.
Neoliberalism =/= liberalism and especially not leftism (or just “the opposite of conservatism”), which I assume is what Colbert means
The lemmy.world thread reminds me of a similar “racism on the fediverse” thread, and the occasional thread about misogyny (dismissive, uninterested and/or personally offended)