Let’s assume it was that easy to build the fence even with all of the obstacles and reasons people have pointed out.
It will take many years to build it.
Are you willing to wait that long to secure the border?
Perry’s solution would take a few weeks at most a few months.
It does not create a problem with your third biggest trading partner.
And it does not take Americans land away from them.
Including the Apache Indian Tribe.
It doesn’t violate the treaties between US and Mexico.
And the United States would not have to give up land to Mexico.
You think that people and Perry who believe this are open border idiots?
If you really believe what you wrote then yes.