The 3 or 4 times I've heard someone use that word here on Lemmy to describe what they don't like, they've been pretty up front that it's about identity politics. IE they hate that trans people want to identify as a gender other than the one they were born with.
So this is making it look like they're just putting "identity" into a bigger word and making it sound fancier.
Oop is infamously a moron on the political side of the internet. Whenever leftist content creators want cheap and easy dunks he’s the go to because he’s big enough to be fair game and dumb enough that it takes like no effort without being so big his fans will cause you problems.