Good point! On the other side, sometimes people seem to be in full agreement by word, but then unexpected divisions emerge as it turns out that although they were using the same words, the parties were interpreting them differently.

It would also be great if more people were able to admit they'd been wrong about their opinions, and able to change their minds, but this is often regarded as a weakness. Many therefore dogmatically cling to and defend their 'beliefs', which creates internal contradictions, cognitive dissonance and unnecessary division.