From the linked article:
"But the parent should have the legal right not to feed the child, i.e., to allow it to die.[2] The law, therefore, may not properly compel the parent to feed a child or to keep it alive."
Not that I don't think that article is full of crap. If we're going to apply property-based libertarian principles to the letter, then we need to talk about the months of imprisonment in a dark and confined area that the mother imposes on the child :P
Of course as a practical matter, if the kid is young enough, or you live sufficiently far from other people, the kid cannot exercise its right to leave, and so effectively you can kill it by not providing food.
I understand how people want to give the government credit for a lot of things, but are you really going to hand them credit for your own care for your children?
(I suspect this falls under the category of "being in such a hurry to say bad things about someone you disagree with that you don't stop to think the full implications of the insult through".)
Guess, even the weirdest pro-pregnancy activist would figure out abortion would be a much more humane way of killing than starving to death.
If the only reason you wouldn't sell children is because it's illegal, you should really never have kids.
(I'm not defending this project or its ideology, about which I know nothing. HN discourse needs to be free of bomb-throwing regardless of the target.)
This country should be based on laissez-fair Capitalism, which is justified morally by Ayn Rand in her book "Capitalism: The Unknown Ideal".
https://mises.org/library/children-and-rights