So you’re actually arguing against a straw man then. You’ve invented this concept of “inhabitant”, as something less than a citizen, and not given any actual evidence for it’s existence, or valid justification for why it deserves less than a citizen.







That’s just like, openly, demonstrably false. Poor countries greatly benefit from having open borders to wealthier nations, as it removes barriers to bringing that wealth back into those poor countries. Closed borders only serve to keep rich countries rich, and poor countries poor.
You framing it as "fleeing"really drives home your biases. If there were an open border between the US and Mexico, we’d see two-way movement way more often, as it’d be way easier for Mexicans to come to the US seeking economic opportunity, build some wealth, then take that back across the open border to Mexico to their family/dependents/community. We see that pretty much everywhere there’s an open border or some sort of economic cooperation zone.