Disabled babies

1983, Peter Singer published an article in the prestigious magazine Pediatrics titled “Sanctity of Life or Quality of Life?” In the article, he contended that there is no moral burden to keep alive human infants who are born with mental retardation or other developmental problems such as Down’s syndrome.

makes the case some animals would be more valuable than the life of a mentally disabled newborn. if a dog or a pig has more mental capacity than that baby, why is that baby more valuable?

-human lives aren't special anymore

James Rachel's in his book Created from Animals: The Moral Implications of Darwinism, self-proclaimed Darwinian James Rachels goes on to write, :

Some unfortunate humans—perhaps because they have suffered brain damage—are not rational agents. What are we to say about them? The natural conclusion, according to the doctrine we are considering, would be that their status is that of mere animals. And perhaps we should go on to conclude that they may be used as non-human animals are used—perhaps as laboratory subjects, or as food (1990, p. 186).