You may be right, but we have arguments that are just as strong, and less controversial, than that one. The percentage of women who are drafted to serve in the military in any capacity who would not have to leave young children behind, who would report for duty, and who would not get pregnant within a year of boot camp would be very low. So, let's not start the whole mess.
The moment they start coming home, in large numbers, maimed, and their pretty faces in black bordered pictures all over the media, this policy will change very rapidly. Human instinct cant be denied.