Ahh, this is where logic and evidence come in to play. For one thing, not all gods can be real. The law of contradiction does not allow it (e.g. Allah and Christ cannot both be real - one must be false, or two could be false logically, but both can't be true). Once this is recognized, one must determine which, if any, of the deities has credible evidence to support it. There is only one that I have ever found that has credible supporting evidence - Christianity.
You cannot, except in your own mind, claim that anyone who doubts the literal inerrancy of the bible is therefore an atheist.
Didn't say that. There are those who call themselves theists who do not accept the bible - many mainline Christian churches for example. But, in the case of, say, the Episcopaleans, they are left with no authority for their beliefs in the absence of biblical authority. A Christian cannot pick and choose which parts of the bible are true on his own whim. Either it is authoritative or it isn't.