Thanks for the recommendation Eon I would check that "A Day without a Mexican" I think I saw a snippet of it shared on Facebook over some of the anti Trump people that I know especially after the building of the wall was said and having Mexico pay for it.
I didn't know there was a Left Befind book and this was a musing I had of a Rapture style post apocalyptic instead of your usual fare of nuclear fall out and zombie hordes.