I understand your sentiment, but I still disagree with you. First, for the people who are unable to regulate themselves, we unfortunately sometimes have to enforce courtesy. There is precedent, even. Talk too loudly for too long in a cinema, and they will remove you. This is solely because you are irritating other customers, not for health or safety. Second, my level of agitation would be nearly homicidal if I had to suffer some inconsiderate idiot's conversation for an entire flight.I would consider it an aural assault, truthfully. I can imagine a physical alteration if the flight lasted long enough. Label it trespassing in my aural space. We use similar sonic attacks to torture alleged terrorists, and, without any exaggeration, being subjected to someone's cellphone conversation for a prolonged period would be torture to me.