He's probably never been able to find credible proof there's no god. But the real question is, why does it matter to him?
Why does he feel threatened by an all powerful, all knowing, one god? A one god is axiomaticaly an atheist and thusly the only true atheist. But does it lead by example?
What would be the meaning of naming it's only son after the faggot god of the faggot people that kill him and publish his book with eunuch slave labor if it were a jealous god? Ji: zero year latin "mary/spouse" + "zeus" faggot god of the faggots that kill him. How does a self respecting jealous and: all powerful, all knowing, one god; just accidently name their only son after the faggot god of the faggot people that kill him? Wooopsy?
Now i heard the story about a man named sue but this is being a little rough, doncha think? doncha? Where's the love? How does an all powerful jealous one god just accidently do that? Or for that matter, name him for anything that could ever be construed that way so plausibly?
Looks like a big goddamned plot hole, imho.
Now don't go thinking this is an argument there's no god. A fkup this massive had to have had some kind of an unearthly power involved just to achieve it.
Sue never had it so good and boris is just a liar that convincingly lies to themselves.