The only reasoning that matters is this:
Does YOUR god word resolve to a concept or object?
If YOUR god has form, then he's an object. Proceed to illustrate YOUR god and show us YOUR theory about how He created the Universe... or whatever.
If YOUR god does not have form/structure, then he's a concept. Then your god doesn't exist by definition.
Only physical objects exist. So that's it, after answering that we're done.