Being able to truly understand why disagreement exists.
It’s the emotional pull each party has to their perspective. From their point of view it is entirely relevant. That’s why you’re disagreeing.
Understanding that, pulling it apart, and taking it to a place of understanding is a gold skill.
it is hard though. you have to take a deep breath and separate yourself from the emotional pull you have to your point of view. And look at objectively what does the picture look like.
It can validate your own view but it does help everyone get to a place of understanding.