"If people could migrate freely around the world to seek work, economists crudely estimate that world GDP would roughly double, and that most of this enormous windfall would go to the poorest people on Earth. There is literally a hundred trillion dollar bill on the sidewalk for bringing together third-world labor and first-world legal systems, capital, and service demand."
You realize that many, if not most third world countries are third world countries because of the mentality, religion (won't mention it, no worries) and tribal thinking? This is exactly the problem we have in Europe. I don't mind immigrants, not at all. But they come here and bring their beliefs, values (about women, violence etc.) and tribal thinking and create here exactly the problems they have in their home country. They see our apples and they want to have apples too. But they don't get the idea that the apples could have anything to do with the tree they are growing on.