The M/F/Congenitally-Infertile distinction is not an "arbitrary standard", but rather a natural kind, and the essence of reproduction of the species. Morality

The M/F/Congenitally-Infertile distinction is not an "arbitrary standard", but rather a natural kind, and the essence of reproduction of the species. Morality is something we impose upon ourselves and others precisely to coordinate the polity, in order avoid or manage conflicts (e.g. driving on the left vs driving on the right).