>>The present border with Mexico is over 1900 miles long and the southern border of Mexico is only 541 miles. Think of the savings!
A wall there also is fit for purpose, since more Mexicans presently leave the US than arrive and the illegal immigration problem now starts further South.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
