Perhaps. I don’t think of it as a “spiritual” quest but rather an attempt to understand the world and my place in it. So far, all the answers that satisfy me and comport with reason have been naturalistic ones. I don’t expect that to change, but the future is unknown. Perhaps a personal tragedy or vision or NDE or something of that nature could drive me to religion.
That’s a dilemma for theists, at some point it all distills down to “I believe what I believe because I believe it”. And that simply isn’t compatible with reason.
No argument from me either. I think it would be difficult for any of us to represent the other side as well as he did. Not an easy task for anyone. You couldn’t rattle him either, he always kept his cool.