Whenever someone assumes the partner in discussion is acting in poor faith, and not merely disagreeing out of being unwise or ill-informed or outright morally wrong, it is indeed best to withdraw from the discussion and I commend you for making that choice.
Should you wish to resume the exchange basing it on a respectful assumption that both of us are trying our best to actually communicate, you know where to find me. Maybe we even see in the party in question.