OK - it seems pretty obvious that the people here do not feel any responsibility for the people who go overboard.
But I really wonder if you would quit cruising if the cruise lines found an aesthetic way to make the ships safe in a very non-intrusive way.
I personally would not stand for looking through glass either, but I can envision a set of very thin bars set at 8-inches apart, painted black (or some less obvious color). I do not think that would change the aesthetics that much.