no-zombie - As a consequence, my new tactic is to only attack emotionally.
While I do not know that I would consider it an attack, I agree with your reasoning. The current crop of JW will not respond to logical arguments formed against their beliefs. This is actually true for most people who have deep ideological positions on matters, including all religious fundamentalists. Their beliefs are not based on fact and reason to begin with, so using such as "proof" as to their beliefs being false is a fool's endeavor. It is an argument that cannot be won. Put another way, "belief" is one of those areas where people create their own reality. Nothing else is "real" to them. I was actually told this personally in so many words by a JW friend not too long ago.
Using an emotionally angled position can work, however this can also backfire, so be careful.
d4g