Hmm, I have a better idea, how about you first prove he exists. Once you've done that, I will be more than happy to try to disprove it, otherwise you can sit down and shut up.
To prove that God exists, or does not exist for that matter, would be to destroy God. The dictionary defines faith as "firm belief in something for which there is no proof." God exists in faith. So we are in God and God is in us all. To prove or disprove his existence would destroy faith. Without faith, there is no God. In that case, if God really did create the universe and God is interwoven throughout the fabric of existence then proving God's existence would destroy us all. So just shut up and believe (or don't) if you know what's good for ya!
As for the person who likened the universe to a complex pocket watch, nice try. You are comparing an inanimate non-sentient object to intelligent living beings which grow, learn, breath, and die among all the other things humans and other living beings do, including making watches. Evolution is pretty much proven to happen in nature. Evolution is not just a theory, it really happens. . .we just have not found the undeniable and irrefutable "missing link" just yet that tells us exactly where we come from but we have seen it in other species. But we don't really know where any of them began. So maybe we were created and then evolved. Am I saying God doesn't exist? No, I would never dare say such a thing because I have no way of knowing. It is entirely possible and likely that we evolved just as it is equally possible and likely that we were created. I'm just saying it is possible for creation and evolution to coexist and that pocket watches do not, on their own, evolve. An intelligent and mortal being created the pocket watch. Its a little different from creating a universe. The analogy just does not hold water for me. The watch was made by a being with limited intelligence and comprehension. The universe, if creationism holds true, was created by a "being" or "entity" (for lack of a better words) beyond human comprehension. The fact that we are here means next to nothing when you consider the infinite size of the universe. If you consider that the universe is infinitely huge then there is an infinite chance that there are infinite other solar systems out there just like ours which support life as we know it. The pocket watch was just created for a specific reason that is known to us and works how we designed it. We have no idea about the nature of the universe or how it is "supposed" to work. It just does what it does and we are here to see it all. The fact that we exist does not prove that the universe is "working correctly as designed." It just means that circumstances in this part of the universe exist that are favorable to our existence. That could be by design or not. It just IS. This makes my brain hurt.