Even relatively small increases in immigration flows can have enormous benefits. If the developed world were to take in enough immigrants to enlarge its labor force by a mere one percent, it is estimated that the additional economic value created would be worth more to the migrants than all of the world’s official foreign aid combined. Immigration is the greatest anti-poverty program ever devised.
No standard moral framework, be it utilitarian, libertarian, egalitarian, Rawlsian, Christian, or any other well-developed perspective, regards people from foreign lands as less entitled to exercise their rights—or as inherently possessing less moral worth—than people lucky to have been born in the right place at the right time. Nationalism, of course, discounts the rights, interests, and moral value of “the Other, but this disposition is inconsistent with our fundamental moral teachings and beliefs.
Freedom of movement is a basic human right. Thus the Universal Declaration of Human Rights belies its name when it proclaims this right only “within the borders of each state.” Human rights do not stop at the border. Today, we treat as pariahs those governments that refuse to let their people exit. I look forward to the day when we treat as pariahs those governments that refuse to let people enter.