Edit: Because it is a prominent feature in the responses until now, I will clarify that there is an emphasis on "all" in "all opinion". As in, it is nothing but whatever someone believes with no foundation in anything measurable or observable.
Personally, I find the only interesting conversations technical or philosophical in nature. Just the other day, I was discussing with friends how ethics used to be a regular debated topic in society. Literally, every Sunday people would gather and discuss what it is to be a good human.
Today, we demonize one another, in large part because no one shares an ethical principal. No one can even discuss it and if they try, many people shut down the conversation (as you mentioned). In reality, it’s probably the only conversation worth having.
Religion is fundamentally folks saying "No, I'm right!" and nothing else. Sometimes it's dressed up a little. What could be interesting about that? You can hear such arguments in any primary school playground during recess.
Such a discussion is about something tangible, and not purely about held opinion (i.e. you can go out and test it). I can see how someone might find that engaging. You are right that I usually do not (unless my conversational buddies have something novel to say about the subject, I find it extremely tedious). It is a good point, thank you.
There are entire bodies of literature addressing things the current generation of available LLMs are missing: online and continual learning, retrieval from short-term memory, the experience from watching all YouTube videos, etc.
I agree that human exceptionalism and vitalism are common in these discussions but we can still discuss model deficiencies from a research and application point of view without assuming a religious argument.