You know... We don’t even need a wall. We just need a sign that says “You will be arrested and after a lengthy prison sentence you will be deported. The person that fires you, will receive a sentence in prison double yours and all their assets will be seized.”
Until the people that hire illegals face business destroying penalties they will still come.
They need to be stopped at the border as well as take away the incentives as you suggested. The problem is immigration enforcement is political. At least the wall will work even if a communist is elected President.
We dont need a wall if we get rid of Anchor Babies and freebies.