[ryanmonroe]

I'm not sure why you think there must be some sinister motive here. The comment chain was

P1: Does this violate some California law by deciding who can attend based on sex?

P2: The third member of your team may be any gender

P3: It's still discrimination based on sex

It seems pretty clear to me the "motivation" for the comment was to respond to P2's implication that this isn't discrimination.

You clearly don't actually "want to know what the motivations for it are", but to attribute motives to the commenter yourself.

> I think, if you're honest with yourself, you'll realise that your goal isn't really to help or support anyone, or to end gender inequality, but instead to take the opportunity to engage in a little bit of reflexive and unhelpful "look how much men are discriminated against" complaining.