Sadly, I don't think there's any way to make the public really care about this. For one thing, it's a sufficiently rare pain in the ass that virtually no one worries about what the latest nonsense from the TSA is on a day to day basis.

I also suspect many people actually do believe it makes us safer. Many others probably don't care one way or another, but if a politician were to seriously attempt to end the TSA, they would be branded as soft on terror so fast their head would spin.