Extremes, by definition, do not describe the most common-case scenarios. In other words, the truth usually lies somewhere in the middle.
Whether it be a by-product of our evolutionary success, or a unfortunate side-effects of modern pedagogical methods, the Human Mind thinks much better with extremes. It's probably because an extreme case scenario is simpler, but also because it is more sensational, and easier to tie emotional and sensory feedback into one memorable package.
I don't think we're going to avoid thinking in extremes. That said, the skill of searching for that happy middle ground can certainly be cultivated.
So step back, listen to the haters and the evangelists, lay out the details, and see truth.