I address the argument of a simple god in this comment.
And before we continue, I will add that I have met deists who believe that the universe itself is god. Deism is so broadly defined that a complete proof against it would also be a proof against the aforementioned universe, duck eggs, and wombats.
How do they distinguish believing in a god that is also the universe from believing in the universe, but no god?
I address the argument of a simple god in this comment.
How do they distinguish believing in a god that is also the universe from believing in the universe, but no god?