Arguing with true believers of any particular creed, myth, or ideal requires monumental patience and mental fortitude. That, or impotent rage and a serious masochistic streak. You could always just slam your head repeatedly into a wall, it might be less painful in the end. I generally find it’s not even worth bothering with, these days. Either people converse with the understanding that the participants are willing to admit when they’re wrong and accept new information that might change their point of view, or you might as well just speak to inanimate objects. Personally, I prefer the latter.