"...and in any case I prefer to live in a culture with (at least) two genders."

That specific formulation sounds appalling to me, actually. If they've done the self-realization thing right, each individual ought to constitute his or her own gender without needing to conform to the shallow norms of society, except where they have explicitly chosen otherwise. So in a sense, my ideal society would reflect infinite genders, filling out every available nook and cranny of human experience.

(Okay, now to reread The Sequences in sequence.)