Obama and the democrats also spent trillions on a war that ended up funding and creating the bad guys. Don't bring Obama into this, there is nothing more economically disruptive than his actions during that administration. Forget the insider trading towards military spending then acting out in drone strikes, military contractors, paying billions to companies and contractors owned by Politicians.

The Israeli West Bank barrier does work lol, I don't know how you could deny that? It works for the Turkey border.

The crime that comes in isn't from overstayed visas, its from physically immigrating over the border smuggling drugs and human trafficking, which is extremely dangerous.

The wall is meant for the 'caravans' that keep being funded by democratic 'open border' associations that storm the border forcefully for political demonstration. It is essentially an invasion. And the best thing for an invasion, is a wall.