If new reproductive technologies like In Vitro Gametogenesis(IVG) and artifitial wombs(ectogenesis) become possible and acessible in the future single men or/and gay male couples could reproduce alone without any woman involved. men could make eggs and sperm with their stem cells through In Vitro Gametogenesis and the fetus could grow in an artifitial womb. Motherless babies will become possible. So men could have also more reproductive rights (the same or even more reproductive rights than women). Men could begin to think that women will lose their reproductive value and become unnecessary in a reproductive point of view. In the more distant future all male society may exist. And also all female societies.
Sterile women who cannot get pregnant at all( like women with CAIS) could also use the technology to reproduce. In fact anyone could reproduce with these things. Even old women.
These technologies may also help to decrease the social differences between men and women and make women do things that didn`t do in most of humanity`s history like for exemple fight and die in wars like men do.
Realize that I don`t want to be sexist and I`m not against women at all, it`s just a curiosity and I want to see other people`s opinions.