[joekim]

Whether or not you have the "right" to be rude, I think the more cordial we are the more we can align around learning through discussion.

If someone is rude to someone who's mistaken that could help them unlearn something, but more likely they will become more entrenched because of consistency principle.

Cialdini talks a lot about consistency principle in his book the "Influence: The Psychology of Persuasion"

https://www.amazon.com/Influence-Psychology-Persuasion-Rober...