Fair enough. I already alluded to it and wanted to present my own novel slippery slope argument using parthenogenesis, but I guess it was a loose end.
I've added a little ordinary enough description of infanticide and acceptance. (Only really interesting thing is the Malthusian material.) The new material is at the bottom roughly where you'd expect it.
Yep. The new material is internally consistent, but of course you're going to lose the people--and I'm pretty sure this would be a majority of all people--who have a strong moral intuition against infanticide.
A few years ago, I wrote a little dialogue I imagined between 2 materialists, one of whom was for and one against abortion, centering on the personal identity question. I recently cleaned it up and added a number of references for the biological claims.
You can read it at An Abortion Dialogue.
Early feedback from #lesswrong is that it's a 'nicely enjoyable read' and 'quite good'. I hope everyone likes it, even if it doesn't exactly break new philosophical ground.