4 links have been added on this idea.
  1. There were a few such strikes in the U.S. back when Trump was the president. They should try them in other countries.
    https://www.theguardian.com/us-news/2017/feb/17/day-without-immigrants-protest-restaurants-economy-trump

  2. Immigrant workers are the backbone of most economies, especially in developed countries. WIthout them, they would crumble.