I don't think it's absurd, because it's happened: http://adst.org/2015/04/a-flood-of-cuban-migrants-the-mariel-boatlift-april-october-1980/ http://adst.org/201

I don't think it's absurd, because it's happened: http://adst.org/2015/04/a-flood-of-cuban-migrants-the-mariel-boatlift-april-october-1980/ http://adst.org/2015/04/a-flood-of-cuban-migrants-the-mariel... > more than 125,000 Cubans fled their country and overwhelmed the shores of the U.S. Castro, whose façade of popularity and support was badly shaken, then upped the ante by allowing thousands of criminals and mental patients to leave as well. The Mariel boatlift was ended in October by mutual agreement between the U.S. and Cuba. However, South Florida had to contend with the repercussions for years to come, including a marked increase in crime (which, among other things, influenced the plot for the 1983 remake of the hyper-violent movie classic Scarface.) Yes, other countries have gamed the immigration system before and could do so again (if they're not already currently). Here's some more reason for concern: https://en.wikipedia.org/wiki/Immigration_to_the_United_States https://en.wikipedia.org/wiki/Immigration_to_the_United_Stat... > "in Los Angeles, 95 percent of all outstanding warrants for homicide are for illegal aliens. Up to two-thirds of all fugitive felony warrants (17,000) are for illegal aliens" and that "60 percent of the 20,000-strong 18th Street Gang in Southern California" were illegal aliens, based on a "confidential California Department of Justice study."[194]