Stephen Miller laid out something you’ll never hear in a classroom: From 1920 to 1970, America had negative migration. The foreign-born population fell by 40% for half a century. And during that same stretch: The U.S. population doubled from natural childbirth. That’s the era that forged a shared American identity — weathering a Depression together, fighting world wars together, landing on the moon together. Then Miller said the part no one else will say out loud: “We need a moratorium until we