Maybe nobody should be denigrating anyone and it is just, in itself, unfair to denigrate others?
I think this is a fair point and we should really avoid denigrating everyone. However, ignore any differences between any of the genders and their assumed roles is not helpful. There are differences we just need to recognize that one isn't better or more correct than the other.
P.S. the AITA subs are always kind of a mess. Especially with people justifying their terrible behavior.