 Gender binarism, which is the view that there are only two genders—male and female—and that everyone is only one of them (Dea 2016a, 108), is assumed by most feminist ethicists in the 1970s and 1980s (Jaggar 1974; Daly 1979). Some of these feminists criticize male supremacy without thereby preferring female supremacy (Frye 1983; Card 1986; Hoagland 1988). They argue that although the categories of “men” and “women” are physiologically distinct, the potential of feminism to liberate both men and women from oppressive gendered social arrangements suggests that men and women do not have different moralities or separate realities, and that we do not need to articulate separate capacities for ethics (Jaggar 1974; Davion 1998).