re: How much innovation have we lost due to legal abortion?

I didn't say it was a valid justification, I just said the OPs reasoning isn't as black/white as it might seem.

The best reasoning against abortion, in my opinion, is the irresponsible mindset it creates. The fact that it essentially functions as a form of birth control in the vast majority of cases is a terrible abuse of something that should only be used in very isolated instances.