The flip side is the harvesting of human resources from all around the world for the benefit of the US economy. Plucking a Nigerian nurse from a village where she’s taking care of dozens of children and placing her in a retirement home in suburban Chicago to take care of few oldtimers offloaded by their baby-boomer children causes irreparable damage. Or not as dramatic, but still ‘unfair’ transfer of taxpayers money when a graduate from Germany or a PhD from Ukraine takes a job at an American university.