I am 100% opposed to the TSA's policies. I also think we have no obligation to treat TSA agents with respect.
Anyone who institutes an unconstitutional policy should be told so, flat out. Simply following orders or doing your job is no excuse, just like it wasn't for the Nazis.
I'm almost with you on this. Human beings deserve to be treated with respect, period. You can respectfully and forcefully decline and explain your reasons for doing so. Treating them poorly isn't going to help anyone, ever. Shaming them into getting a new job just simply isn't going to work.
Anyone who institutes an unconstitutional policy should be told so, flat out. Simply following orders or doing your job is no excuse, just like it wasn't for the Nazis.