It's rude to demean someone for their opinion.
Donny is in the middle of a debate with a friend.
He wants to make his point heard.
Danny lays out the reasons for his argument but listens intently to what his friend has to say.
Danny screams at his friend and calls him dumb.
Danny and his friend understand each other better and find common ground.
Danny's friend now respects him less and doesn't trust that they can talk about sensitive issues anymore.