You're wasting your time and breath. The screeners will do whatever they want to do, and you can accept it or leave the airport. Those are the very unfortunate facts right now. Most of the American sheeple believe that this kind of abusive treatment is OK as long as it's done in the name of "security."
Personally, I dread going to the airport these days, but I'm going again this afternoon. I hope that things get better eventually, but I am not hopeful.
Bruce