This proof of God is based upon the Big Bang theory which most scientists accept. The Big bang Theory states there was a beginning of the universe. If the universe was eternal then this argument would not exist but all the evidence shows otherwise.
I'm not entirely sure about this, but I don't think this is correct.
Space-time
as we know it had a beginning, but nothing of such order is known about the singularity from which the universe came. It could perhaps be the case that the universe actually IS eternal, but that it just changed form (from singularity to space-time). Not that it matters much imo, but it seems you're excluding such a possibility and it's not clear to me why you do that.
God is not judged by this criteria because nobody says he had a beginning.
Which is just an arbitrary definition.
We could just as well arbitrarily define the universe as being "uncreated" and use that as an argument against a creation god. Arbitrary definitions are useless.
If we try to ask what created God, the only answer we could come put with would be another higher being. Then we would have to ask then who created that, and again we would say another higher being. This leads to infinite regression and there is no final answer because we would always have to question then what created that.
Yes. Which is actually not a valid argument for stating that "therefore, god is uncreated and eternal". Because you still haven't actually established that this god exists or is even required. You just arbitrarily
defined it to be that way.
A more rational claim would be to state that the universe itself is uncreated and that it always existed
in some form. I wouldn't agree to such a baseless claim either, but at least that one doesn't require assuming the existence of unsupported deities with a bunch of arbitrary properties.
Descartes said that on an individual basis we know that we exist because we think. If we try to deny this fact then we simply prove ourselves wrong because to deny something in the first place we must exist. When we accept this fact our logic tells us that something must have always existed
I have no idea how you got from Descartes' statement to the bolded part.
So once this is established the question is what is the uncreated first cause. The Big bang theory says the universe came into existence at a point in time which they can apply an estimate to. Therefore the universe is not the first cause.
I need to stop you right there. This is completely at odds with big bang theory and our knowledge of physics.
Causality requires time to exist (causes happen
before effects).
Time is an integral part of the universe / space-time continuum.
No universe = no time.
No time = no causality.
No causality = no causes.
The big bang happened at T = 0 (the beginning of the universe or
the beginning of time.
Before time is a senseless notion. There is no "before" time.
Whatever big bang was, under the current understanding it had to be uncaused.
You can't have your pie and eat it too.
There is nothing wrong with an atheist accepting the Big Bang theory but they should follow where this logic leads and accept the existence of God.
Logic never leads to assuming the existence of undemonstrable entities for which no evidence at all exists. Especially not if the "logic" requires you to selectively read scientific theories.
I feel abiogenesis is harder to accept but it isn't as important of a question as how did everything come into existence in the first place.
I can't help but feel as if what you really mean by that word "important" is how it is important to
your belief system.
You need to understand that those things which you believe on faith are only relevant to
you.