The wall is the stupidest idea. If we want to stop illegal immigration we have to go after the companies that employ/pay the them with stiff business breaking fines. Stop giving them driver's licenses, vehicle ownership rights, property, rentals, etc. But not one on either side is willing to do that. Building a wall would be another classic waste of money that a bunch of companies will get rich off of tax payer money and in the end we will still have an illegal immigration problem.