No defensible moral framework regards foreigners as less deserving of rights than people born in the right place at the right time.
To paraphrase Rousseau, man is born free, yet everywhere he is caged. Barbed-wire, concrete walls, and gun-toting guards confine people to the nation-state of their birth. But why? The argument for open borders is both economic and moral. All people should be free to move about the earth, uncaged by the arbitrary lines known as borders.
Not every place in the world is equally well-suited to mass economic activity. Nature’s bounty is divided unevenly. Variations in wealth and income created by these differences are magnified by governments that suppress entrepreneurship and promote religious intolerance, gender discrimination, or other bigotry. Closed borders compound these injustices, cementing inequality into place and sentencing their victims to a life of penury.
The overwhelming majority of would-be immigrants want little more than to make a better life for themselves and their families by moving to economic opportunity and participating in peaceful, voluntary trade. But lawmakers and heads of state quash these dreams with state-sanctioned violence—forced repatriation, involuntary detention, or worse—often while paying lip service to “huddled masses yearning to breathe free.”