When you reach "The cliff of Irrational Arguments" you need to stop and reevaluate what is the purpose of the discussion.

There was a joke about the man who was threatening to jump off a cliff. No professional could convince him otherwise with sound arguments. It took a another mental patient to make an irrational threat, cut the cliff down, to scare him off.

Edit to add link: https://idiallo.com/blog/the-cliff-of-irrational-arguments