I think, the Bhikkhuni (and Bhikkhu) ordination is entirely the right and duty of the religious group, i.e. the Buddhist Sangha. It has nothing to do with the idea of “discriminating against women, and violating the right to religious freedom”.
Currently, only Chinese Bhikkhuni ordination (based on the tradition of Chinese Mahayana Buddhism) is officially and historically recognised and presented.
But, I really think women do not have to be recognised by men for the ordination. In fact, it already has become a reality, which most of them are in the form or structure of Theravada or Tibetan style.