Tolerance, though, isn't about accepting all religions as true, but in respecting the right of every human being to practice their religion. The Golden Rule applies to all human beings. My favorite site on this subject, Religious Tolerance has many wonderful articles about this. The problem arises when some folks apply their belief that only they are correct and true, to be license to persecute others who do not believe as they do. Many Christians consider any protection against their proselytizing to be persecution against them, but that's another story.
My question, though, is: can dialogue be possible when we talk with folks who believe that only their views are true, and any discussion is actually a way to convince the other person how wrong they are? I guess I know the answer - for me, dialogue is about listening and learning - finding common ground. I continue to try to engage in inter-faith dialogues, but after all these years, I'm getting it through my thick skull how pointless it is with fundamentalists.
It is good practice, though - to smile and contemplate patience, accepting the person with fundamentalistic views as they are.