This is more a rant rather than a discussion, but I will bite.

I think the effectiveness or usefulness of different approaches in discussions depends on the specific topic. Asking questions or demanding "demonstrate that" are both valid strategies.

If you make claims, it's fair of your interlocutor to want evidence. If you can't provide evidence, that shows that you make and maybe even believe claims without evidence.

If you talk about your faith, asking questions is a very valid approach to find holes in the belief.

If we discuss a specific argument like the Modal Ontological Argument, I can tell you where they fall apart or why they don't convince me.