Yesterday's post about the the extent that mainstream feminist thinking is implicated in trans exclusinary radical feminism generated some great comments. In particular, my impression that Women and Gender theorists overwhelmingly defined gender differences as being in the contingent realm of culture and sex differences as being in the realm of nomic necessity was mistaken. However, nobody took up the main point I was trying to make (and it should be clear that no one has an obligation to do so) so I'll try to frame it more generally.
First, with respect to gender, it's not enough to problematize the gender/sex distinction merely by arguing that sexual difference itself is imbued with cultural and epigenetic factors. Has the debate gone beyond that sort of generic culturally relativist move? It was not clear from the comments. The challenge by Serano and Garcia is in part from the other direction; denying that aspects of gender difference are in the realm of nomic necessity leads to other forms of oppression. From Sullivan's post, the denial of this by many feminist activists involves systematically ignoring or dismissing the testimony of many trans people, and this suppression accounts for much of the acrimony between TERFs and transgender people.
Second, the gender/sex issue wasn't a little bit orthogonal to the problem I tried to pose, which was that much feminist theory (at least the stuff I studied seven years ago) wasn't able to navigate a Scylla and Charibdis between politics of identity and difference. Serano and Garcia argue that even recent feminist theorists (who are aware of the danger) end up denigrating femininity and telling women that they should have traditionally masculine traits. But if the alternative is Carol Gilligan or Glover type theory, no thanks. Glover critiques the "final girl" in horror movies (the last possible victim who survives and kills the killer) as a "male adolescent in drag" in part because the final girl has "masculine" attributes such as planning and use of reason. As far as infantalizing condescension goes, this is about on par with pesticide companies giving pink teddy bears to women with breast cancer.