I would try to secure the border in some way but allow people to come through the ports of entry to do farm work and/or other jobs. Immigration would be sharply curtailed to include only those who can benefit the society that is already here. The days of free entry with nothing to offer are over. In effect, a sign would be hung on the Statue of Liberty that says, in bold print, “We are sorry but we have NO VACANCIES! (It was only a matter of time, anyway… )