Earlier quoted context omitted.
Religion provides community, it provides a spiritual outlet, it provides ritual, it provides comfort in the face of death. There's many benefits and truths about religion that don't require an invisible man in the sky to exist. That was acutually my original point. TRUTH can be found in both atheism and theism.
I think you're confused. The truth you're talking about exists outside of both of those contexts (theism VS atheism). Religion is just a collection of beliefs that may or may not involve "an invisible man in the sky". Theism VS atheism are mostly orthogonal to the point you're trying to make.
Having a shared sense of purpose is very powerful for people.
You don't get that from an atheistic Church which is basically just a club where the only shared purpose is disliking something.