Well, this comment of yours doesn’t look like a good faith argument.
What I meant is that it takes two sides for one. And when two people are ready to argue in good faith, one may downgrade the level of contention from “argue” to “discuss” without any loss.
(For me and my sister it would still be “argue”, but we are just rude to each other.)
You are making a good example of a person who maybe thinks they can argue in good faith but very clearly doesn’t, with emotional pressure and such.