When you hear someone say something with which you disagree, instead of immediately giving your opinion, start asking questions. Help me understand how you reached that conclusion? Where have you seen this happen? What resources did you use? Could there be any other viewpoint we could look at? Could there be some examples from other industries, countries, or cultures? How can I learn more about this topic? Are there some authors who write about this topic? Who are they?
What or where can we explore to understand more about this topic?
Sometimes a topic or opinion is not that important or doesn’t seem to have enough depth to explore. Even then questioning may also lead to great new insights and important related topics.
If it is important enough to have disparate opinions maybe it is important enough to explore through a mind map.