You really don't know that Detroit and San Francisco are in the same country and Mumbai and New York are not? Because that is the difference. If you arguing th

You really don't know that Detroit and San Francisco are in the same country and Mumbai and New York are not? Because that is the difference. If you arguing that national borders are immoral... well, I might agree in theory. But many more things besides immigration change at that point, and we are not there right now.