Liberal Christians often seem hellbent on ramming through the idea that the Bible is not the inerrant word of God, and it's pretty easy to come to the conclusion that they insist on this because they see an inerrant gospel as leading (for a sincere Christian) to views and stances they find distasteful. It's easy to imagine conservative Christians at least sometimes oppose the idea of an errant Bible for that very reason as well. That's a great recipe for a whole lot of back and forth fighting between liberal and conservative Christians over whether or not to regard the Bible as inerrant.
The problem is, the mere existence of error in general in the Bible doesn't get the Liberal Christian where they soften want to go. Grant, for the sake of argument, that the Bible contains errors - it is not an inerrant gospel. Okay; now, how exactly does one intend to get from that point to (say) regarding sodomy, abortion, etc, as morally good?
That part is typically skipped by the LC altogether, save for fallbacks to mere moral intuition. But the conservative Christian is (putting aside for a moment philosophical, traditional, etc arguments and evidence) just as entitled to their intuitions as well on these same questions. What's needed, and what is almost never supplied, is an argument for error *on the specific topics which the LC wishes to object to*.
A good way to think about it is like this: LCs tend to not just accept evolution, but fall over themselves praising Darwin and evolutionary biology in general. Will they say the Origin of Species is inerrant? I'll give them the benefit of the doubt and say no, they would not. But does a lack of inerrancy for the Origin of Species mean that we can therefore doubt the existence or effectiveness of Natural Selection?
Note that any supporting book or document will have the same question of inerrancy applied to it. At the end you're going to reach the conclusion that, no, just because these documents are not wholly (or even partly!) divinely inspired doesn't mean you can just discard whatever doesn't appeal to you. But the same situation applies to the Bible itself.