In most circumstances we start with a lack of clarity to the full context in which a decision needs to be made
Such is true even for context which you priorly grasped fully
seemingly opposed stand points are a result of each party having partial contextual understanding.
The person in disagreement with your point of view is not the adversary. He is your key to gaining a more wholistic perspective to the situation in question.
It is important to avoid misattributing the difficulty of the circumstances as an inherent character flaw of the person you are working with