Whoa!! you tried to CNN me there for a minute. Not falling for it!!
Here's what really happened.
You/Poop said: Walls are ineffective
I said: Walls work.
Alright. I guess they work in some sense. They just won't stop the flow of illegal immigration, and won't stop the flow of drugs, so they don't work in the context we're discussing.
The strengh of a hero is defined by the weakness of his villains.