“First, acknowledge the disagreement and paraphrase the opinion of the person disagreeing to make sure ...”
To expand on your point, I was taught that a person is just being ignorant if you cannot argue your "opponent's" position to their satisfaction. You really don't have to believe one word of it but understanding where their reasoning has taken them is vital to understanding your own position. It will help you decide that what you believe is reasonable and has been properly tested.
It will also have the value of telling you if there is a real disagreement or the fog of one human trying to talk to another is obscuring what should be an agreement. Nothing is as stupid and painful as two people arguing past each other.
To expand on your point, I was taught that a person is just being ignorant if you cannot argue your "opponent's" position to their satisfaction. You really don't have to believe one word of it but understanding where their reasoning has taken them is vital to understanding your own position. It will help you decide that what you believe is reasonable and has been properly tested.
It will also have the value of telling you if there is a real disagreement or the fog of one human trying to talk to another is obscuring what should be an agreement. Nothing is as stupid and painful as two people arguing past each other.