Michel Foucault, Jacques Derrida, Jean-François Lyotard, and Richard Rorty are all far Left. And so are Jacques Lacan, Stanley Fish, Catharine MacKinnon, Andreas Huyssen, and Frank Lentricchia. Of the major names in the postmodernist movement, there is not a single figure who is not Left-wing in a serious way. So there is something else going on besides epistemology.
