In my experience on HN, there have been plenty of unflagged/un-deranked posts regarding DEI. Remember when the harvard admissions scandal occurred? There is obviously "things to see here", in some cases.
In this case, there indeed may be some new phenomenon, which is real, effectful action against DEI in education, by government (at least in a long time and as far as my memory serves me).
Calling something you (you personally) don't like to see, don't find interesting, or don't agree with as "just stuff, nothing worth seeing", is not the right way to approach discourse in online forums, wouldn't you agree?
Personally, i'm undecided on the DEI hot button, but what I'm more passionate about is open discourse about it, not more of your philosophy of shutting it down.