No, as you said, it just has to be more complex lol
Are you really trying to say that the universe and cause and effect are barely more complex than you are?
Try tossing countless numbers of electrons, protons, and neutrons into existence in a cause and effect "pattern" and producing intelligence thousands of years later. Do you even know how to start to do this? God did it. His complexity is way beyond that of the resulting Universe He made.
When did I say ''barely'' You said the thing that created the universe has to be more complex than the universe and I said, ok, then that thing only has to be more complex, that still doesn't show it's god, it just shows the thing that created it has to be more complex.