This qualifies as terrorism. An ideology that even tacitly embraces these viewpoints should be eradicated. Those who preach this should be imprisoned or institutionalized.
The libertarian US economist Murray Rothbard (1926-1995) wrote in his book ‘Ethics of Liberty’, that parents should have the right to put a child out for adoption or sell the rights to the child in a voluntary contract. Rothbard suggested selling children as consumer goods in accordance with market forces, would benefit “everyone” involved in the market: “the natural parents, the children, and the foster parents. In Rothbard’s view, “the parent should not have a legal obligation to feed, clothe, or educate his children, since such obligations would entail positive acts coerced upon the parent and depriving the parent of his rights.” Thus, parents should have the legal right to let any infant die by starvation. However, since “the purely free society will have a flourishing free market in children” he wrote, “the existence of a free baby market will bring such ‘neglect’ down to a minimum”.
Source – Wikipedia