So you appeal to the authority of a man who can't make himself walk, about the existence of a life creator. Brilliant.
And no, the concepts of spontaneous genesis of matter and energy from nothing, life from non life, as well as increasing the genentic code are not based on factual science as there is no observable evidence to support any of them. They are believed to have happened because most in the scientific community choose to disallow using God as an explanation (somewhat in an effort to avoid explaining the explainable with lazy and ignorant superstition, and somewhat due to various prejudices); however denying the plausibility of a God as an explanation is itself an unscientific step.
The easy answer is that God did not come into existence - in fact He answered this question over 3000 years ago when Moses asked Him who should he tell has sent him - the response was "I AM" (loose translation). There is no beginning to God - (in fact by definition He is the uncreated creator to all things). It is only logical that God would be uncreated and have no beginning - otherwise if we use induction we could say that God came from a bigger god, who himself came from another god and so forth until you arrive at the realization that the infinite process leads to just one God/creator.
Also there is nothing illogical about one who lives outside of the universe not being confined by the laws of our universe such as "cause and effect" in fact it is quite hilarious that a person would argue against a god using the idea of cause and effect when in reality that is what completely undermines the credibility of a universe apart from a god because guess what that is the problem with your belief namely: "where did all this stuff come from originally?". Possibibly the epotime of ignorance - ignoring the flaw in your own theory and claiming it exists in a theory that doesn't have it.