Why would we have no patrols, guards, or surveillance? It turns the Rio Grande into a choke point. It also makes entering around the wall a choke point. Wow...it isn’t reaally hat complex.
\How deep into this kind of stupidity are you planning to go? So, let me make it easier for you, build a wall and pull the manpower because according to you and others "walls work" or in Gkekoanese the argument for the stupid thing. Once more, there's already a wall, fencing and natural barriers there. A new wall to replace what's already there is stupid and a waste of money even if Mexico pays for it. Increase manpower, institute more advanced technology and ancillary personnel, I'm all for, building a wall because frightened people have been scared once again, is NOT justification for a shiny new unnecessary replacement wall.