The Wall is the greatest piece of fake news in modern history. How many people could climb a massive wall? Only a few fit young men and women. The rest forget it. It would have cut illegal immigration down vastly and all the illegals would funnel in to areas that are easier to access and border patrol can handle them more easily if they aren't spread out all over the place. You would still have a lot of illegal crossers but it might be 5-10% of what it is now.