Let us take the next proof, please. The Nature can not have the infinite past, so there is supernatural component there.
See, this is where your whole "argument" crumbles... the term "proof".
In natural sciences - like physics - there are no proofs. There are only observations and evidence that support or contradict a certain idea... called a "hypothesis".
Basically, in natural sciences, people say "All that we know, observe, experiment points to the conclusion of X. It
could be something different, but we have reasons to believe X, but not something else... yet."
In mathematics - where there are "proofs", a proof is solid. It cannot be contradicted. Here, people say: "We have some basic premises, thus we can conclude from that X. There is no other way based on these premises."
What you present here is not even a conclusion as in natural sciences. Mathematics proofs may be based on unproven and unprovable axioms, but these axioms are either "obvious"... or defined as true. That's how mathematics work.
But your "conclusion" (it is not worth to be called a "proof") isn't based on anything like that. Your premises are not "obvious", and defining them as "true" would defeat your cause.
Basically, your way of "proof" consists of people saying "I conclude X, based on premises that I chose, and I refuse to consider anything else."
Weakest kind of "proof" there can be.