Ten --- fifteen years ago -- even less --- these people had jobs and homes in Mexico. And the fact they can't make it one of the world's wealthiest nations is what needs to change. We can't just keep absorbing all of Mexico's huge and growing social problems. Mexico has to reform --- and telling them they don't control our immigration laws and the border will be controlled is actually the best way to make that happen. Like I've said over and over --- there is no excuse whatsoever that all prosperity ends when you come to a thin river.
By 2025, we could absorb the entire working age population of Mexico, and the worker to retiree ratio required to pay Social Security benefits to the baby boomers would not be reached.
The problem is in this side of the border.