My comment is one bit of opinion in a terabyte stack. You don't need (and won't get) 100% support from every bit on every forum.
If by "us" you mean women in general, you're assuming women in general want such a place where only women are allowed. If you are successful, then a pattern may emerge where more places are set up that exclude groups based on gender or other differences.
If it were bathing facilities or medical clinics and so on, where the needs of women-only services are based on practical reasons and obvious differences, nobody would question it. When the service is "technology", there is nothing inherent to that medium that warrants gender isolated services.
I'm male, but I don't comment or code from that point of view. I wouldn't want to frequent a place mainly intended for women coders. But I wouldn't want to be stopped at the door either. It's wrong to do that, which is why we have laws protecting against such discrimination. I believe a good-faith model and honesty system would serve you better in the long run rather than official gender verification, which is quite a hard-lined approach. Good luck with it anyway.