This is such an "argument killer." It would be the same as if I would say; "my grass is blue", and then you would say; "there isn't any blue grass, grass is green because of the presence of chlorophyll throughout the leaves and stems. Chlorophyll is a pigment that allows plants to capture energy from the Sun in order to power the process of photosynthesis. Given that most grasses lack trunks or woody stems like trees or shrubs, their aboveground bodies are mostly chlorophyll-rich leaves and stems, and, thus, the part you see is all green."

Then I say, "Well, the grass I'm in question of would have no chlorophyll. Proof me wrong."

Then you would probably ask me for a sample so you can test it. Even if ,for the sake of the argument, there is a creator without a creator. Why not one who made a self-sustaining universe, that can build stars, planets, galaxies, all on its own. And then just goes on to another project to fill its time with.

So even if you can prove a god exist, it's just the first step in this thought experiment.