Am I right to assume, that theists cannot prove that I am not god?

[Minimalist]

That moment when theists say, "but you can't prove god doesn't exists."

I don't think I can prove it. The best I think I can do is demonstrate that you don't fit the description of the Jewish G-d, but even then, we'd both have to agree that the description of G-d comes from Jewish sources.

Where else would it come from?