607 BCE is not how anyone at the time would have spoken of it, for starters. Actually, anything BCE is historically anachronistic.
So? The fact is that the entire teaching scheme of the WT relies on 607 BCE, and IT IS THE WRONG DATE! I mean talk about having egg on your face!
SO back to your theory of logical reasoning... If your date is proven wrong, how can you continue to put forth the teachings based upon it as truth? Doesn't that violate logic?