When theists are willing to define core beliefs, I'll be willing to pay attention to whether atheists understand them. Unless you do, why should I bother? I know what particular theists have told me, and what I've been taught in classes and books. They don't agree. Either put up some universal beliefs (good luck with that one), your own beliefs, or what you think are self evident beliefs, or shut up. I have no interest in guessing what of the morass of theist beliefs you happen to consider important. correct, or self eviedent.
If there is a god, I want to believe that there is a god. If there is not a god, I want to believe that there is no god.