I just had this thought in my other thread.
Jehovah Witnesses refuse blood transfusions because they believe blood to be the sacred symbol of life. That's the primary reason, the medical justifications are simply ad hoc excuses. Couldn't it be said that their willingness to give their lives for the sanctity of the symbol of life is idolatrous? Putting the symbol ahead of what it represents?
I'm not religious so I have no bone to pick with idolatry, but I know it's a big deal for the WTS, so as a doctrine it is inconsistent with their own ideals. Do you think that this reasoning could be used to sway witnesses on the issue in times of personal medical crisis?