For years now, corporations in the United States have clamored for more foreign-born workers. The main reason for this need, they insist, is to remedy an alleged labor shortage. Indeed, by examining the unemployment trend line, every year since 2010 has brought progressively lower jobless numbers, and since President Trump took office, businesses are reporting record profits and growth. Furthermore, acting White House chief of Staff Nick Mulvaney recently declared that the U.S. labor force is “desperate — desperate — for more people” to immigrate into the country. So, this surface examination of the U.S. economy tells us that we’ve...