Could these lawsuits backfire?
What if the courts rule that the TSA is within their rights to do the pat downs?
Just by hearing the sentiments of the average person, "Anything is OK if it keeps us safe", maybe the courts will see it the same way.

Who will be actually in court to defend the TSA? Their lawyers only?

Sorry to say this, but I really do not have much faith in our court system. It sold out long ago.