The line between immigration and geopolitics will slowly fade. Once viewed as a purely a domestic problem, employment-based immigration will move center stage over time and become a core component of national foreign policy. As nations become richer, women do not have as many children. Older citizens are more organized than ever before and they vote. The political will to alter the social contract in such a fundamental way does not exist.
Immigration is the only answer.
Even those who do not want it are increasingly being forced to accept a reality which can not be denied. But, like a mirror the first thing in the morning, the consequences of low fertility rates force us to face the truth. There is a huge amount of money at stake. Nations exert power to protect vital interests, and high technology expertise in the digital age is just that. US immigration policy has already become an extension of a computer - based economy on which our role as a world leader depends.