Actually, I don't agree that there are very many women who aren't comfortable learning to shoot in the presence of men.
Rather, I think the traditional firearms training industry has done a poor job of meeting women's needs, and an equally poor job of convincing women that their products will meet women's needs. The reluctance to take co-ed classes is not so much a reflection of unwillingness to shoot or to learn in the presence of men; it instead reflects a very deep, core belief that the traditional classes do not meet the needs women bring to class.
The fact that bothers me is that you seem more concerned with the down-the-road changes to society than you are with saving the lives of the people we can reach today. I'm not sure that we have any ethical common ground here at all.
My personal website: Cornered Cat