Why are you chasing the idea of the existence of a God?

[robvalue]

Naturally I believe the OP has a point. Do we have any clear evidence to point to the concept of God being totally limited to filling in the gaps of our knowledge?

The inability of theists to agree on even the most basic qualities is good evidence that it does not relate to a single, real entity. It's never been demonstrated that any of these versions do anything at all outside the mind of the theist. They generally do everything you'd expect, such as agreeing with them on every subject, and sharing their knowledge.

And I am still not convinced that spirituality  survives through indoctrination alone. I know of many people who become spiritual as adults who never grew up in a religious home.

Specific religions survive mostly through indoctrination. "Spirituality" can also mean virtually anything, and I agree, superstitious thinking can develop in adults.