I wasn't offended at the term "atheist fundy". I just didn't see it as "accurate". But yes, I can see your point. Anyone can turn any belief or any non-belief into some sort of "righteous cause" that they pursue with zealous devotion and it becomes their religious way. Hey some people considerer shopping and consumerism as one of the fundamental "rights" of life! Or sports! They pursue them with religious zeal and devotion! I'm thinking of my mother here (shopping) and my husband (sports). Humans do seem to have the ability to become unbalanced and religiously devoted to just about anything to the point where it becomes no longer beneficial and even harmful.
I am an atheist but I'm not dogmatic about it being "right" or "true" and I don't see any particular beliefs as being fundamental to my present non-belief in God. I am open to new evidence as it presents itself. I still believe in showing caring and respect to others no matter what beliefs they hold. I will grant you that there are atheists who are dogmatic and disrespectful of believers in God. I acknowledge that there are also believers of God who are respectful and open to new evidence and are humble enough to adjust their way of belief if the need arises. Most of the people on this board probably fall into that category as we had to be somewhat "open" and "humble" to change our beliefs in the JW's and admit we were wrong.
Some people turn being an "ex-JW" into a righteous religious cause and devote huge amounts of their time to being "against" the organization. Perhaps the reason that I see religions as all being fudamentally the same, is that the majority of people are all the same underneath. They all have the capacity to turn literally anything into a "religion" and it is the underlying assumption that "their beliefs" are absolutely the correct ones and that there is no possible way they could be wrong. If they have to disrespect or harm others or deny reality to maintain their beliefs and their "rightness" then so be it. All the world's religions are just slightly different manifestations of this underlying belief that most people tend to hold in common.
I know there are individual exceptions, but they are often tiny voices lost admist the clanging symbols of institutionalized beliefs.
Cog