Isolationist sentiment in the United States has skyrocketed to the highest level in decades, according to an analysis of survey data by the Pew Research Center. In November, 49 percent of survey respondents agreed the United States should "mind its own business internationally and let other countries get along the best they can on their own." That’s up from 42 percent in 2005, 30 percent in December 2002, and a mere 18 percent in 1964 (the earliest year with data available).
Immigration reform advocates who seek to liberalize the system best take notice. Sorry, Silicon Valley.