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But on what basis do people support illegal immigration?
Sure, the average Mexican citizen would probably live a better life as an American citizen, but so too would the average American citizen live a far better life as a Swiss or Monegasque citizen. Do all Americans have the right to move to Switzerland and enjoy the privileges of citizenship?
Should NGOs be flying Americans to Monaco and putting them up in the Hotel de Paris? Where does it end?
Far better to bloom where you’re planted, in my humble opinion.
So, for example in a neighborhood, everyone is free to live in whichever house they please, with no obligations for maintenance or utilities (i.e. the duties and responsibilities of citizenship). How would that work out?
First, naturally, people would head to the nicest house on the block. Eventually, it would get too full and too dilapidated so people would move to the next nicest house, and so on until the “niceness” of each house reaches an equilibrium point where there is no longer incentive to move because the next house is just as nice (or not) as the one you’re living in.
Should anyone try to “fix up” a house and succeed, theirs will become the nicest house on the block, attracting everyone to move in. Very quickly, their effort will be negated and everyone will move back out since it isn’t nice anymore.
The only stable equilibrium for this system is one in which all houses are equally miserable, and getting even worse. That’s why houses have locks, and that’s why countries have borders.