Uh, I once had a Muslim neighbor who was a cab driver, a totally admirable guy.
True, there are lovely individuals of every religion. And there are a-holes of every religion. This joke is poking fun at the latter.
This is a wish-I-could-have-been-there kind of story.
And it was a fantastic moment for satiric humor during an awkward interaction.
Bravo! . . . Well handled, Cabbie!