“I’m the Prime Minister of Spain. This Is Why the West Needs Migrants,” Pedro Sanchez headlined his New York Times op-ed. “The West needs people. Currently, few of its countries have a rising population growth rate. Unless they embrace migration, they will experience a sharp demographic decline.” Spain’s demographic decline is helped along by the nearly 1,000 euthanasia cases a year. Those who die are replaced with the growing flood of Muslim championed by Sanchez. The West needs people, but only certain kinds of people, and it euthanizes the wrong kind. Spain’s population is set to shrink by one more...