1) 1 million per mile is NOT absurdly expensive. Compare this with a mile of highway and you will see what I mean.
2) The point is to dissuade that person from ever leaving home. This is the biggest reason FOR a “wall”. If we don’t respect our border enough to take reasonable and obvious measures to enforce it, we have no reason to expect others to. It’s not a matter of putting up a do not enter sign. It’s a matter of taking down the current de facto welcome sign.
3) If they missed home so much they would return and not come back. No, they are leaving home to come here in increasing, not decreasing, numbers with the current border. Once again, the point is to discourage the next million – if they can’t cross the border as they please, crossing the border the first time is less advantageous.
Nobody said a wall would get rid of illegals already here. Other measures are needed for that. And the wall would not be a cage – they are free to go at any time.
