I don't think you come across that way, jw daughter.
On the one hand, you're right, of course. Basic politeness is important.
On the other hand, respecting wackadoodle ideas/beliefs is not a good thing, in my observation. It gives credence and perpetuates the snake oil. Check out this article about the fact that ridicule is effective--very interesting.
Maybe a balance can be struck--respect the person, not the false belief.