In general, complete data on population trends is very lacking. So if you have a source I would genuinely be interested in examining it.
But I guess where you and I disagree is whether or not the problem identified actually is the problem. Which I think makes creating essentially sexist sub-networks/organizations questionable. If the crux of the issue isn't some sort of gender discrimination (nefarious or not, structural or cultural, etc.) then the proposed solution doesn't actually address the underlying issue leading to the observed macro trend.
But I guess where you and I disagree is whether or not the problem identified actually is the problem. Which I think makes creating essentially sexist sub-networks/organizations questionable. If the crux of the issue isn't some sort of gender discrimination (nefarious or not, structural or cultural, etc.) then the proposed solution doesn't actually address the underlying issue leading to the observed macro trend.