Too few Americans are qualified for the jobs available. Male working-age labor-force participation is at Depression-era lows. Opioid abuse is widespread. Homicidal violence plagues inner cities. Almost half of all children are born out of wedlock, and even more are raised by single mothers. Many college students lack basic skills, and high school students rank below those from two dozen other countries. The causes of these phenomena are multiple and complex, but implicated in these and other maladies is the breakdown of the country’s bourgeois culture. That culture laid out the script we all were supposed to follow: Get married...