One side in the debate formulates its belief based on Scripture.

The other side does not. The other side formulates its belief based on Enlightenment philosophy.

So when it comes to interpreting the Scripture, one side is interpreting believingly. The other side is interpreting, again, under the influence of Enlightenment philosophy.

It could not be more clear: the King James Bible perfectionist argument is between two sides with very different belief systems.

In fact, we could go so far to suggest that these two belief systems are really a conflict over a view of how far God has an interventionist role in history as relating to the manifestation/presence of the Scripture.

Or to put it another way, how far God has provided a method of interpreting from Scripture how much He reveals in Scripture He has an interventionist role in regards to supplying the same Scripture.