This was in the letters to the editors in our local paper:
A DUMP-TRUCK RELIGION
Dialogue is out of the question with people who have a dump-truck religion. They have a load; they drive in and dump it; they're outta there. The delivery of their words completes their mission. It is not connected to your response.
The good they do lies in delivery, not in consumption. That is their understanding of "love thy neighbor as thyself." They are delighted when you agree with them, and equally satisfied, if not happy, if you respond negatively. That only helps them to become martyrs suffering "for righteousness sake."
Give up hopes of dialogue. You can't win, and in their minds they can't lose. "No dark is so dark as the darkness of a mind that is closed."