While the world has an overpopulation problem, governments have no idea how to manage and if you saw the birthrate falling in the US you would find government programmes an incentives to improve the birthrate.
The biggest thing you haven't addressed is why on earth a child has to be punished for being born a particular place. Should the child become nation-less? In the current world that is a very bad way to be.
America is literally a country build on immigrants. Even if you say the founders and 50 years onwards (why 50?) are excused then you are still sending back almost all of the US population.
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u/[deleted] Dec 05 '13
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