If he's asking you to do something degrading, immoral, harmful, etc... then I agree with you. Producing your ID accomplishes none of those things. It's harmless other than the "I won't be told what to do" factor that you seem to be the only one who understands.
It's producing ID for crying out loud, while a violation of your civil rights, I suppose, whatever happened to common sense?
Just like all the gun supporters who cry about the second amendment and what our forefathers fought for. Yea, I understand the second amendment, but I don't think what our forefathers were fighting for was the right to take assault rifles into a movie theater.
Damn it people, some common sense, please.