I would hate to get into another meaningless debate over immigration of the kind that crop up on THR,
That said, the US has increased spending on border patrol over the last 20 years by some phenomenal amount. At the same time illegal immigration has increased by about an equal amount. That suggests spending more money on the problem will not solve it, but actually make it worse. THe WSJ had an interesting idea that increased patrol actually increased residency of illegals since when going back and forth was relatively risk free people tended to come north just for jobs and then go back home. When the risk increased people decided to minimize that and stay put north of the border.
More spending on law enforcement will not solve this problem. People have no trouble aknowledging that on the drug issue but seem unable to grasp this on the immigation issue.