Gay and happy used to be synonyms, too. I suspect when people say “spiritual but not religious” what they’re saying is they believe in a God or some greater being, but don’t accept all the tenets of organized religion.
Pop quiz. Which church is equally known for shunning gay people while priests molest little boys? I’ll buy a vowel. You know?
If you were to systemically go through each religious organization and make a list of who they shun, it’d be darn hard to find one with an empty list.
Hence — spiritual, but not religious. Seeking enlightenment without the roof of any organization over my head. Count me in that camp.