The Migrant Tsunami

Taki's Magazine looks at collapsing Puerto Rico, and reports the following:

In 2014 alone, a net of 1.8 percent of Puerto Rico’s population left for the mainland. The cumulative decline from its peak population in 2004 is now approaching 10 percent.

In contrast, the Puerto Rican population of the 50 states grew about 50 percent from 2000 to 2013. About three-fifths of all Puerto Ricans now live on the mainland.

That’s an important fraction to be aware of because we are often told that only a small percentage of the 6.1 billion people who live in the less developed nations would bother to decamp for the first world under a policy of open borders. But the experience of Puerto Rico, which is hardly poor (GPD per capita is near triple the world average), suggests that if allowed, third worlders would keep coming until life in America and Europe declines to third-world conditions. 

Donald, get busy and build that wall.