John Derbyshire: ‘We live, as I have noted before, in a beggars’ democracy’

John Derbyshire writes:

Over 13 percent of our population is foreign-born, the highest proportion since the early 1920s. Legislation of that time (1921, 1924) brought immigration down to very low levels for 40 years, allowing the Great Wave immigrants to assimilate. Do you think it is time for another move to much lower levels of immigration?   (…)

There are 49 majority-Muslim nations in the world, two of them wealthier than the U.S.A. Should not Muslim refugees be resettled in Muslim nations to minimize culture shock?