He, the Princeton "ethicist" who advocates for post-birth euthanization of "severely disabled children" in some cases. He also argues for occasional "non-voluntary" euthanasia by the state, as in cases in which you have elderly folks suffering from terminal diseases, consuming precious resources to keep their pointless lives going. THen a funny thing happened: his mother developed Alzheimer's. Guess who argued for his right to keep her living because of her value to him?
By the way, advocates for the disabled have started to catch on to the abortion industry and euthanization advocates: as through history, these folks invariably set their sights on all these imperfect people among us, starting with the disabled.
Rule number one with all purveyors of murder and genocide: define the people you wish to exterminate as something less than human.
"They look like babies, but they're not. They're clumps of cells we prefer to label with a nice Latin word: 'fetuses.'"
"They look like people but they're not. They're Jews."