Agreed, it's actually just impossible to have a non-polarized discussion if people identify too strongly with one of the poles. This isn't unique to HN, we essentially live in a bipolar society. Even if you present a middle ground, someone identifying with either pole will assume you are identifying with the opposite pole, because they see that part of the world in black and white.
Nevertheless, these discussions are good for clarifying your understanding of the world, just try not to expect much in the way of respect, appreciation, agreement, or understanding.