That's not the start of the discussion, btw. The start is about a hundred posts back -- and if you're going to be really complete about it, you should first read the relevant Karen Joy Fowler story at Sci Fiction, and then the relevant review at Tangent Online. Of course, to be really really complete, you should also read Tiptree's "The Women Men Don't See" first, and then Molly Gloss's Wild Life, before doing any of that.
Or you could just read my bit on it all. Minor spoilers for the Fowler story.