Can a person talk sense to the one that does not have any?
If one has closed his mind to reason, can another open it for him?
Some debates are pointless. When there is no rhetoric, when one or both parties are refusing to listen to the other’s point of view, then no progress can be made. All you have is what is seen in American politics today. Rather than a healthy discourse leading to positive change, we have each side trying to bully the other.
Do not answer a fool according to his folly, lest you be like him.
Proverbs 26:4
Wisdom would suggest an open mind, a desire to understand. Close it off, and improvement ceases. And arguing with a fool? Foolishness indeed!