Good question. Who's looking after the interests of male founders?
If you've read any of the previous Y Combinator statements on sexism against founders, you'd know that position being taken here is one of removing inefficiencies in the system. All the women being literally chased out by male investors who are seriously abusing their power just to get their rocks off is considered to be a huge opportunity cost. A female founder conference is a workaround, and it makes you sound really out of touch to complain about it.
Which is why I am saying, if you care about the people - which we happen to describe with the term "females" in this case - you should strive to include them, not to create conferences, events and groups that "protect" them by isolating them.
If you wanted to do ballet tomorrow, would you prefer a "boys-only" class or a "regular" one?
By the way, thanks for the time and the effort you invest in actually discussing with me instead of just downvoting my comment - I appreciate it a lot as it is the only way for me to have a chance to understand where I am wrong and where I am right. :)
In such a situation, I think providing some path for men to participate at all, and thus gradually shift the balance to the point where it no longer is a big deal, would trump the more abstract general concern of "let's not ever make anything about sex." I understand that ideal, but we're not there yet. We're in a remedial situation, where VC (and much of society, to be honest) is as of yet too immature to allow that to work.