ABSOLUTELY!!! That would make an excellent coordinated security effort with Trump's wall.
What these assholes forget is that back then, you either had to have a sponser, or proof you had a job and were healthy to get into this country.
Thos who were sick were sent back or quarenteend and if they arived WOP-WOP means Without Papers, they were sent back. Mic meant Irish and the Jewish had a circle drawn.