Okay. Why don’t you give me, as you say it, physical evidence that this is the case?
Only metaphysical propositions need to be substantiated.
Epistemological propositions have no true/false attributes. They either work, or don’t work.
Also ethical propositions are either useful, or not.
Finally aesthetical propositions are fully subjective.
Since you are so proud of your philosophical prowess, I am surprised that you are unaware of this.
As for the existence of God, it’s “right there”: cause, effect, it cannot recede infinitely or else there is either no knowledge to be obtained about anything, so there is a First Cause, which we name God. Is this “not physical enough,” or what?
You confuse the God of the Philosophers with the Biblical God of Christianity. They have nothing to do with each other.
From the existence of causal chains (which we observe) it does not follow that there is only one causal chain, therefore there could be several “first causes”. As a matter of fact, if we have free will (which is a plausible assumption) then we create new causal chains every time we make a free decision - and that does not elevate us to the status of God.
And from the existence of causal chains it does not follow that the beginning needs to be created. The view that it simply exists as a brute fact is an equally valid approach. After all in your view God simply exists, has no antecedent, no creator - so God
IS a brute fact. Also from the hypothetical “first cause” it does not follow that it needs to have consciousness and volition, it could be just a deistic force of nature.
There are two problems with your approach. You cannot substantiate the existence of brute fact “first cause” and you definitely cannot establish that is hypothetical “first cause” equals the feature-rich Christian God - whom by the way is not really feature rich, being absolutely simple.
Aquinas simply concludes: “And that is what we call God”. I have never seen a less convincing conclusion.