Hello Cas, hello Jun,
I find this discussion really interesting. Where I train, there never was such a discussion. My teacher does not treat women and men different with regard to their gender nor does anyone else. They make differences because of any person is unique and has his or her own level of knowledge. That's what makes the difference, not gender.
Cas, I'm interested why women should not be allowed to train at an equal base or train at all??? Is there any good reason?