Our picture of the meaning of "immigration" is simply too small. We are choosing to lock ourselves in a tiny box bounded by anxieties about who is taking whose job, who has legal documents, who presents a security threat. Meanwhile, there's a lot we overlook from relatively small shifts with local effects to vast global migrations,
Yes, the national obsession with guarding the U.S. border is killing small business and pissing off the Chamber of Commerce in this Republican bastion. A more open border made a healthy economy; cutting off movement is choking the border communities, on both sides.
Meanwhile, across the globe, the European Union is trying to look ahead and perceives a profound new challenge:
Actually, the U.S. faces the same environmental migration pressures-- and has the historical experience to weather it. Our history includes an analogous episode, the massive wave of immigration pushed by the 19th century Irish potato famine that filled our cities with hungry laborers, much to the consternation of the good Anglo-Saxon Americans who had got here previously.
No force is going to stop human migrations -- the task is to manage their consequences as fairly to both long time residents and newcomers as can be achieved. Pretending we can lock these human tides into our little boxes is literally crazy.