The comment to which I replied calls for STEM researchers to "do something" - without specifying what. What are you suggesting should be done? Are we talking about writing papers criticising those fields, as they criticise ours, or are we talking about some more radical kind of "self-defense" like making sure their funding is cut and their research and teaching positions cancelled?
It seems sensible, at the very least, to ensure their research meets the highest standards of rationality just as they ensure STEM meets high ethical standards.
I also think it's worthwhile to ensure those departments are completely inclusive and don't exclude Christians, white men, the right wing, etc. A principled, rational approach to inclusion can help ensure that the social departments are truly representative of all the people.
Edit:
This isn't a description of grievance studies as it currently exists, rather it's an answer to the question "what should we do?" - we should advocate and lobby for something like this, I think.
Thank you for clarifying. But, why is that anything to do with STEM researchers, or researchers from any other field, than the fields in question? What are we, the guardians of scientific rationality? If a field is full of nonsense, it's up to its community to fix it. If they don't see the problem- well, that, too, is their problem.
You and other commenters here sound like you think a problem in, e.g., gender studies is a problem for all of academia. I really don't see why.
Edit: to clarify- I don't see how the gender studies etc fields "ensure that STEM meets high ethical standards". If such critique is really common among the humanities, at least my field is completely ignoring it. And I don't see how we can be forced to pay attention if we don't really care to.
In short- they can say what they like. Why should I care?