Automation and outsourcing is going to already do that, illegal immigration or not.

No it doesn't. There are things called ditches and ladders. any one of them will be enough for illegal movement

Right, only you'll have 10s of millions of more people that need to be supported if that happens. If you want to immigrate, do it the right way. If you can't handle that, then its that person's problem. If that person jumps over a fence and gets caught, he or she should be deported. 

It’s still a total waste of money.  Why waste money on spending building a wall.  The high fences we have already are patrolled, have sensors and satellites monitoring them now.  Spending money on a wall when stats have shown that illegal immigration has actually gone down then up through those means seem silly.  Instead that 10 billion could be placed where it count, into our education system.  Give scholarships to kids who excel so they have a chance to go to college and not work low paying jobs illegal immigration fills.  We would not care if all our children had the opportunity to get higher education thus better jobs which would boost the economy in a better direction.  As a world power to have our education system below 3^rd world countries should be an embracement.  But we are still looking for the scapegoat to our problems.  Really, who looks to their kids to fill in jobs that illegal immigrants take.  How does those jobs effect higher wage jobs.  People act like its easy to find a job when you are not here legally.