I think it's mostly because a lot (most?) men - particularly woke men - are impatient with
a) the other half of the population banging on about inequality
b) they think that "women are equal now" (fat chance!)*
c) they dislike being reminded that they are implicated in the oppressions of patriarchy
You're not wrong! However, I kind of understand the annoyance. If feminism becomes just another branch of identity politics then it serves nobody well at all.
I do think that lots of young people these days do tend to assume & think that feminism has done its job; and in most ways it has. the problem, for me, is that equality in law is equated with 'sameness', and so particular/specific female & women's issues are glossed over.
it is assumed that women are just like men. No different.