Liberal interpretations have the "risk" of a slippery slope into not being Christian anymore.
That's always the problem...defining these religions. Even in Catholicism, there is enough wiggle room with the various dogmas that Catholics sometimes hold very different opinions. Religion, in some areas, is necessarily vague.
The whole problem I see with your over generalization is that it is ignoring the fact that there are many levels of fundamentalists. Also, your bias also has been shown to effect your interpretation of the Bible. Such as arguing that the Bible does not necessarily condemn homosexuality.
I have found that the Bible is a very complex book and so ancient and removed from our culture, not to mention mistranslated, that it is very easy to misinterpret some passages. I have read books and good arguments suggesting that the Bible does not indeed condemn all homosexual behavior. Much of our misunderstanding comes from our removed cultural context.
As for fundamentalism, I think that it is dangerous in any form. A fundamentalist may be moderate (if fundamentalism can ever be called moderate), but convince her of a more extreme interpretation of the scripture, and she's all for it.
I was 14 when I finally listened to my doubts -- doubts I had had for years, since I was a very young child -- about the inerrancy of and historical, literal truthfulness of the Bible. No matter how hard I try, I simply cannot fathom how any intelligent adult can believe that Adam and Eve were real characters, that the creation account is factually true, talking snakes and forbidden fruits, God-men that rise physically from the dead and FLY into heaven (as if we live in some kind of three-tiered universe with heaven at the top, earth in the middle, hell at the bottom).
I absolutely don't get it.
But I suppose for many people whim and psychology determine that they somehow read ancient mythology like a newspaper. Maybe someone smarter than me can figure it out.
I'm probably being quite condescending right now, but I have family members with these beliefs, and I care for them, but they have often been quite destructive people, and they seem to live in fear of everything about reality and modernity, they hate gays, and other races, and anyone in general who is different. Sometimes I just wish I could make them see how fascinating and wonderful THIS world can be, but I suppose that's not my job, so long as I do what I can to make sure they're not creating a theocratic Christian state with the agenda to execute all gays and women who have had abortions in the meantime. And while not all fundamentalists have these agendas, I am not at all lax about the power behind the religious right in the USA, especially in the South, where I'm living. My friend is having a hard time even buying her birth control right now, and evolution is challenged or not even taught in many schools around here. Religious fundamentalists often come around to tell college kids that we're all masturbators and fornicators going to hell, and they hold up big signs in the street, like "JESUS IS MY PRAISE," so coming from this racist, homophobic, sexist, part of the Bible belt, maybe I'm a little more ******* off about it than most.