He went to China and helped the workers in his factories manufacture his neckties, too.
I don't think you're going to convince him that Trump so much as designed the cover.
And he's right. Trump the mediocre-at-best Christian hawking Bibles with Old Glory embossed right on the cover is hilarious. Just the accessory for when you're wrapped in said flag and carrying a cross around your neck.
That reminds me of many moons ago at Christmas when RP quoted Upton Sinclair (iirc) during an interview when he was asked about Mike Huckabee, saying that when fascism comes it will be wrapped in a flag and carrying a cross.