When we know someone is unreasonable, a narcissist or toxic, why do we still argue with them?

Let's examine 3 valid reasons for arguing with someone. 3 reasons why arguing might be a waste of time.

And perhaps the real reason why we might still argue with them, even though we'd rationally know it is a waste of time.

Watch on YouTube for all of the visuals:

https://youtu.be/0EmbSmSUnQg