The dragon is a joke. I'm not taking it seriously. We can drop the dragon thing.
It doesn't matter whether you intended it as a joke or not. The point is that if p1) everything that begins to exist has a cause for it's existence and p2) the universe began to exist, then the conclusion that the universe has a cause for it's beginning to exist yields certain consequences. Every day, doing math, science, or just basic living, we use logic to make sense of and interact with our world. Sometimes, logic reveals understandings that sound counter-intuitive to us. For example, Einstein first used logic to come to the belief that gravity could bend light. It was quite some time
later that he was able to find the right math to explain it, and he was already convinced that he was correct
before non-believers "saw" it with their own "telescopic" eyes. Even now, some people still refuse to believe it.
I think if the universe had a beginning there's more to it naturally speaking than what anyone knows so far.
I understand that you desire to explain the beginning of the universe through a natural cause, but so far, the logic does not support it. I remember Hawking expressing how he was sad to disappoint so many time-travel fans, but he then went on to proclaim that it just doesn't seem to be a realistic possibility.
So this "timeless", "uncaused" stuff doesn't sit well with me. I don't think before the universe there was absolute nothingness.
I understand. Sometimes the logic and evidence doesn't want to support our preconceived notions about reality. When things like that happen, it can be difficult to adjust our beliefs accordingly.
So anyway, so far we've agreed on an immaterial, omnipotent, uncaused, omniscient, free-causal agent as the cause for the beginning of the universe. I think it was also timeless for reasons I explained earlier. By doing so we've been able to trim down the list of possible candidates quite considerably. The logic doesn't point
directly to the Christian god, but he certainly possesses all of the characteristic traits we've considered thus far.