Wait, are you a libertarian now, or a Mincome advocate? I'm super-hazy due to my chronically bad memory, but I remember you being in favor of a strong welfare state in the usual sense of the word, which is inevitably coupled with restrictions ("nanny state" as GB affectionally calls it) for the furtherance of public health. I'm likely wrong here on your beliefs.
Also, out of curiosity, what do you think of people who willfully/negligently damage a future person's quality-of-life through unnecessary actions during pregnancy? E.g. fetal alcohol syndrome, certain prescription drugs, environmental hazards, ...) For the purpose of this "aside", address those pregnancies that are brought to term, the aborted ones are not of concern.