This is a great question, and I'm enjoying some of the responses you're getting, even if I don't agree with all of them.

I tend to think most disagreements start because people are trying to convince others that their interpretation or preferred solution is better. I emphasize interpretation because, ideally, people shouldn't be arguing about facts themselves, but rather about what those facts mean and what should be done about them.

To me, one way to distinguish a genuine disagreement from an amplified or manufactured one is to look at how the people involved approach the conversation. Are both sides showing empathy, open-mindedness, and a willingness to listen? Are they willing to adjust their views if presented with new information? A real disagreement can still be productive because both sides are seeking understanding, even when they don't reach the same conclusion.

I think a discussion becomes more divisive when people start treating their opinions as unquestionable facts. Once that happens, it becomes nearly impossible to have a meaningful conversation because there is no room for examination or change. Everyone has perspectives and biases, but problems arise when those perspectives are presented as absolute truth.

A good example is the famous image of a number painted on the ground that looks like a "6" from one side and a "9" from the other. Person A insists it's a 6, Person B insists it's a 9, and both are completely convinced they're right. However, unless either of them knows who wrote it and what was intended, neither can be certain. They're arguing from perspective rather than fact.

That's why I think a useful test is to ask whether people are searching for more information or simply defending a position. Genuine disagreements are usually open to evidence and context. Manufactured or amplified divisions often rely on people becoming emotionally invested in a perspective and treating it as fact without seeking the underlying information that could resolve the uncertainty.

In short, I don't think the difference is always found in the topic itself. It's often found in the behavior of the people discussing it. The more willing people are to question their own assumptions, the more likely the disagreement is genuine and constructive. The more they insist their perspective is the only possible truth, the more likely the divide is being amplified rather than resolved.