Jacob G. Hornberger: Why do anti-immigrants favor protectionism?

  Okay, I get it: President Trump and his acolytes favor immigration controls because they don’t want people from s***hole countries coming into the United States. What doesn’t makes any sense is why they also favor tariffs, sanctions, embargoes, and other trade restrictions against those s***h countries. After all, by increasing economic misery in those countries, such measures only encourage more people from those countries to come to the United States, the exact opposite of what anti-immigrants want.