A "meta-argument" against all future arguments for God's existence ?

[Ferrocyanide]

Simple things would be particles, such as photons, electrons, quarks, protons.

You seem to be assuming that God is a material object. What gives you this idea?

You should read Fake Messiah’s link.

Stephen J. Gould's concept of "Non-Overlapping Magisteria", which separates the world into a material realm that can be explained by science and a non-material realm that can be explained by religion, effectively turns the entire concept of religion into one big garage-dwelling Dragon.

And let’s talk about non-material objects. Numbers are non-material objects, languages are non-material objects, so are names, designs, emotions, music, literature, paintings, software.

Non-material objects have no effect on reality since they don’t exist.
There are millions of books that use numbers but numbers don’t exist. You are never going to find number 5 walking down the street.
What you will find is some molecules (the ink) on some other molecules (the paper).

Non-material things have no effect on reality:
Win XP doesn’t format your hard drive when you use Win XP to format your hard drive. What really happens is electricity interacting with atoms.

The only way for non-material things to exist is to have a material representation of it.

You can burn a book but you can never destroy number 5. You can only destroy the representation of number 5.
You can destroy representations of ideas, of stories, tables, chairs. But are you really destroying those ideas and those designs or do they exist somewhere?

So, I am going to have to disagree with you. If god or the aliens are real and they interact with our reality, then they are made of a similar stuff, or at least stuff that can interact with the forces of this universe {gravity, nuclear, electromagnetic, weak}.

And I asked:
So, what lead these people to claim that a god is absolutely simple?
What do they mean by absolutely simple. What are its properties?