Sex is the flip side of gender. Following Judith Butler, we criticise the gender/sex binary as found in feminist literature before the 1990s. Butler demonstrates, correctly, that both sex and gender are socially constituted and furthermore, that it is the “socializing” or pairing of “gender” with culture, that has relegated sex to the “natural” pole of the binary nature/culture. We argue similarly that they are binary social categories which simultaneously de-naturalise gender while naturalising sex. For us, sex is the naturalisation of gender’s dual projection upon bodies, aggregating biological differences into discrete naturalised semblances.
While Butler came to this conclusion through a critique of the existentialist ontology of the body, we came to it through an analogy with another social form. Value, like gender, necessitates its other, “natural” pole (i.e. its concrete manifestation). Indeed, the dual relation between sex and gender as two sides of the same coin is analogous to the dual aspects of the commodity and the fetishism therein. As we explained above, every commodity, including labour-power, is both a use-value and an exchange-value. The relation between commodities is a social relation between things and a material relation between people