Yep..ive said it before and I'll say it again....I am genetically and anatomically ill-equipped to solve this problem. At best I am a sideshow.
My gut tells me that the best solutions to the problem are only going to come if we deliberately build a project development team for a FOSS project completely made up of women..deliberately excluding any male participant.. and let that team develop its own cultural norms and workflow without being warped by existing culture. We might have to do several of these experimental projects. The hope would be that such a group would end up pollinating a number of other women-initiated projects over time which start out with this revised development culture and male participants would learn to adapt to it.
But again...I have a Y chromosome so my suggestions as to any solution are already suspect.