What does God need with a starship?
I ran into a free-thinker in "field service" who said something to the effect: "Do you think God would really send a bunch of nicely-dressed weirdos with printed stuff that nobody wants to read? Wouldn't he get our attention with something grand?"
It's fairly similar.
Go further with it. What does God need with a temple, church, synagogue, or shrine? What does he need with a bunch of groveling worshippers praying and chanting and flattering him to stroke his ego. And what does God need with a son? ....a human sacrifice to set things right? All that born-of-a-virgin stuff and being brutally killed to be resurrected again- that would only be the things of a bored God or a megalomaniac.