“The natural universe appeared from nothing.”
No one says that but creationists trying to dismiss science.
“Since the universe is all that naturally exists (matter, energy, forces, space and time) whatever the first case was must have been super-natural.”
HOw in the fuck does that follow?
Everything we know that exists in the universe is natural, therefore we add the supernatural because… what? That’s where we want to end up?
“Since the universe hasn't always existed, the first cause couldnt have been in operation eternally but was the chosen action of a free agent.”
Okay, you pull supernatural out of your ass to solve a problem that doesn’t actually exist, then you make it an intelligent supernatural agent. Because reasons.
“Since the universe is massively large and full of unimaginable energy, the first cause must have been unimaginably powerful.”
Pure poppycock.
“Since the universe is finely-tuned to support matter, energy, life, etc, the first cause must have been immensely intelligent.”
So, just a prolix attempt to define god into existing.
“Since the first cause created time, the first cause must itself exist in an eternal state.”
As above…
“So, the first cause (or Creator) of the universe was a super-natural, personal, Omnipotent, Omniscient and eternal Being. That's God.”
Oh! My! Your logic chain has gone from your premise to your premise!