My friend, the analogous scenario to OP’s post is suspected white supremacists attending a black tech conference and applying for jobs at said conference and then mocking black people for wanting to have our own tech conference
The premise of the thread makes it seem as if anyone who identifies as male was banned, correct? They were only able to get in because they identified as non binary because if they just came as themselves they would have been turned away.
That's not analogous to excluding white supremacist at a black convention.
Analogous would be if anyone who identifies as white is banned. They are not and can join if they want to. There is no black career fair that is exclusionary unless it's an invite only thing.