the division comes from atheists attempting to make anyone who is religious look like an idiot. its a shame that you people cant have a congenial conversation with eachother because of this.
Some do and some don't and the same is true for Theists. Both Atheists and Theists have very different high-stakes values. As a general result, Theists perceive Atheists as literally attacking them with an intention to kill (goodbye identity and goodbye religious psychological satisfaction). Atheists perceive Theists as a source of irrationally destructive and retarding behavior.
This means that both Atheists and Theists harbor negative feeling towards each other and this naturally shows up in non-congenial conversaion.
but then again..its about "you are right, and i am wrong", isnt it?
Sometimes it is. Alot of times it's about "what is objectively true, and what is objectively false?"