The phenomena called dark matter and energy is modeled on the effects displayed on objects in the universe that have no other apparent cause by any known means to cause the observed motions of astronomical material. We could have just as well have called it god. It would have been confusing to call it such of course. That some thing must cause the motion is the proof of somethings existence, even if it is only a heretofore unknown consequence of current known causality. The words are a place holder, much like the word god, only for a rather specific scientific discipline.

I think it will and would leave them with faith and word of mouth alone just as it has been for many many years!!

I don't think theyre the same kind of concept lol

Proving the existence of an undiscovered phenomena or material, initially theorized based on indirect observation, might be a way for the theist to portray the discovery of God; but that goal has been elusive for the scientist who believes in a God, but cannot, no matter how hard he/she tries, find his fingerprints. A Nobel Prize surely awaits such a discovery ... and yet we wait.

You can't see gravity. If we prove dark matter exists or not, that has zero to do with proving the existence of god(s). There is a lot of evidence that no Abrahamic god exists. There is no evidence that any god(s) exist.

Theoretical science versus Proof of god? Nope don't think it's going to happen. The god part.

I couldn't say. I got plenty on this planet to keep me occupied.

I don't see the correlation. There is evidence that dark matter exists but none that a god exists.

There is absolutely no reason that a god(s) can not be proven to exist. All that would be required is for some tangible, verifiable, peer reviewed evidence to be presented. Until that actually happens, the existence of god(s), deities, the supernatural does not exist and is simply imaginary. IMHO