I agree. Sooner or later, economic decisions will hide behind "because of security." I see the day when bringing in food or beverages will be prohibited, "because of security." The same with backpacks, camelbacks, etc.
What you can do is say enough and not go. I did that with flying, when the latest rules on electronics, food, books, etc., were the straw that broke the camel's back. I've done it with professional and collegiate sporting events as well.
The goal of terrorism is to intimidate and force a change. Looking back at what our country used to be and they way we lived our lives, I would stay that the terrorists accomplished their goal.