That's weird. I accounted for the things you've said when I planned to write this article. Your points add to the fact why we can't have a proper conversation about faith and religion. (I didn't disucss them here, though).
Regarding (4), you're right. If we want to have a proper conversation, we can't really see it as a 'debate' anymore. But I don't see how 'something to do with the difficulty one experiences in life' negates the function and benefits of having a debate.
If we adequately reclaim the conversation in such a way we can capture all four of your points, don't you think we can construct meaning conversations?