“Virtually everyone, regardless of skill, is much more productive in the First World than the Third World.” And that doesn’t just apply to high-skilled immigrants. It also applies to very low-skilled immigrants, who, when they immigrate, can tap into labor markets with efficiently run firms, predictable legal systems, and ample capital”
https://reason.com/2021/09/09/when-we-reject-immigrants-we-reject-trillions-of-dollars-in-wealth/