Just across the ocean in, say Kenya or Tanzania, a two-gender system is vital for the survival of most of the folks who live there. Men do men's work, women do women's work, and so it all gets done and the jackals can't get into the hut and eat grandpa. So, the future of the transgender movement is like the future of all human rights movements: whatever the state of things in your area now, with some work it all gets a little bit better all the time, even if it is sometimes three steps ahead and two steps back.