This system just accreted, reaction upon reaction, yesterday’s crisis leading to today’s improvisation, in turn laying the groundwork for tomorrow’s crisis.
Under present immigration policies, the U.S. population will exceed 400 million by 2050. Nobody is seriously planning for such population growth—building the schools and hospitals these people will need, planning for the traffic they will generate. Nobody is thinking very hard about the environmental consequences, either. The average American causes the emission of almost 17 tons of carbon dioxide each year, quadruple the annual emissions of the average Mexican and 45 times the emissions of the average Bangladeshi.
The question before the United States and other advanced countries is not: Immigration, yes or no? In a mobile world, there will inevitably be quite a lot of movement of people. Immigration is not all or nothing. The questions to ask are: How much? What kind?
Too little immigration, and you freeze your country out of the modern world. Too much, or the wrong kind, and you overstress your social-insurance system—and possibly upend your democracy. Choose well, and you build a stronger, richer country for both newcomers and the long-settled. Choose badly, and you aggravate inequality and inflame intergroup hostility. How we choose will shape the future that will in its turn shape us.
II. A Recipe for Social Discord