I may point out that cofty has often used the argument from incredulity because he cannot believe that a loving God would allow the thousands of deaths caused by the Asian tsunami - Earnest
It's quite depressing that somebody would so egregiously misunderstand my point after the effort I have made to explain it succinctly. But anyway thanks for the opportunity to clarify yet again.
Island Man was spot on, thanks for that.
My argument was NOT incredulity at a god randomly murdering hundreds of thousands of men, women and children. That would be facile.
My point is that god's actions contradict other fundamental facts about god.
If I considered a friend to be a loving husband but then I discovered that he repeatedly beat his wife I have a dilemma. I can insist that beating your wife is compatible with being a loving husband, even though I am incapable of offering an explanation, or I can accept that there is an impossible contradiction and revise my opinion about my erstwhile friend.
THIS is my argument about god. According to xtian theism god is love. Jesus defined and demonstrated the meaning of god's love as actions in the interests of others. Natural evil is contradictory with this claim in the same way that beating your wife is contradictory with being a loving husband.
This contradiction does not prove that god does not exist but it does specifically disprove the god of xtian theism.
My argument has nothing at all to do with incredulity unless you mean I am incredulous how so many believers can live with cognitive dissonance.