If you actually look carefully to understand my argument, you would likely see that the logic doesn't appeal to God existing, the logic establishes that there is necessary existence, that existence is not finite by its necessity and is without any limit, and that has this necessary existence being the cause of all other things coming into being. This does not appeal to God, but what is established by logic with it is fully consistent with people's belief in God. There is no argument against that logically possible.
If the necessary existence was the universe itself, the universe would show all the characteristics of necessary existence. Necessary existence is absolutely necessary, it wouldn't be otherwise, by that necessity, and so would not change by evolving, never having a beginning either, that would only be something possible for what wouldn't be necessary existence. With the absolute necessity would be no limit or being finite. There would not be any uneven gaps. With there being power with being necessary existence, there would be infinite power. If there were ever any intelligence then there would be intelligence that is all-knowing. I could go on like that. The universe the way it appears is not like that at all. But one who believes that the universe is a manifestation of that infinite, omnipresent being, which would be omnipotent, would be consistent with that much of the logic, being a pantheist that way. This would not be an atheist position though, and the atheists have no explanation and are ignorant of that logic, either willfully if it is heard or conceived, or else never having come to that logic. So they cannot have anything consistent with it from their position.