I'm tempted to agree with you. If we make it inconvenient enough, and uncomfortable enough, for them to use airlines for travel... Then possibly they'll stop or reduce their usage of airlines. Therefore making potential middle eastern terrorists stand out all the more. Sorry for the inconvenience chaps, but sacrifices must be made.
However, if we "cry wolf" too often, then we may not be taken seriously when there are real indications of a threat.