It is easy to present solid arguments against fundamentalist christian hermeneutics, because the system of thought is wildly self-contradictory and full of philosophical holes. The fundamentalists who ardently deny this and try to defend their faith are in two categories: those who are capable of critical thinking and those who are not. Members of the former category will eventually see the merits of the arguments the atheists present, whereas members of the latter category never will.
One point worthy of note is that many fundamentalists, when they experience their philosophical enlightenment, will abandon Christianity completely. They mistakenly believe that all Christian denominations share the philosophical problems (and moral problems such as oppression of homosexuals) as fundamentalism. This is very untrue.
"Mainline" Christianity (including some Lutheran groups, Episcopalians, and others) take a much more educated approach to interpreting the Bible, recognizing it as a human work which contains human errors and contradictions, as well as being steeped in the culture of its day. The Bible is seen not so much as a framework in which one must remain, but a vector which should be re-assessed in the light of modern knowledge (scientific and moral). The emphasis is not on a literal afterlife, or an offended God that provides a proscription which must be strictly followed to assuage his wrath. Rather, in the recognition that most of this language serves as metaphors for states of mind that can be achieved in this life, the practice becomes much more about living in humility and love in this life, and receiving the benefits of that here and now.
Of course, they still believe in God, which is an impossible-to-prove point. But notions like "God hates atheists and other religions and will send them to hell" and "god hates homosexuals" and "women should be silent in church" are seen as outdated beliefs held by those who did not have the benefit of modern knowledge, and a painful part of our own history which must not be forgotten in order to ensure that they are not repeated.