This whole conversation seems ultimately useless, because the "lack belief" crowd is wrong anyway. There are good reasons to belive that the proposition "God does not exist" is true. If you don't believe that, you should.
Predictably, someone will probably come along and say, "but which god? neener neener neener!" The answer is: all of them. For any being which the word "God" in the above proposition can refer to, either there is a strong argument against that being's existence (see: argument from evil, argument from divine hiddenness, etc.), or allowing that thing into the set of things which "God" can refer to broadens the concept into uselessness and makes us all theists by default.
Predictably, someone will probably come along and say, "but which god? neener neener neener!" The answer is: all of them. For any being which the word "God" in the above proposition can refer to, either there is a strong argument against that being's existence (see: argument from evil, argument from divine hiddenness, etc.), or allowing that thing into the set of things which "God" can refer to broadens the concept into uselessness and makes us all theists by default.
"Logic, it will turn out, is simply a fallible theory about crucial notions such as validity." -Graham Priest