So what you are saying here is that we don't understand the very moment of the big bang, and as you don't know the answer, the answer must be God. no further questions.
God is infinite and we don't understand infinite either (I do feel I understand infinite but in your story you are showing you do not.
) but this is just because he's God and he's unquestionable. nobody needs to create God, but the rest though..
tell me, there are evidenses of black holes and implosions.. do you believe they exist?