The bumper sticker should have said: "Jesus loves you, and Allah wants you converted, enslaved, or dead."
Allah is a false god; in other words, he doesn’t exist. So, to say that “Allah” wants you dead makes no sense to me.
“Mo-Mo” went into a cave and listened to “an angel of light” that told him there was only one God and it was Allah, but Allah was just one of many of the gods they worshipped back then in that part of the world.
It’d be like someone saying “Jesus loves you but Zeus (or Athena, or Artemis, or fill in your pagan god) wants your goose cooked!” Totally ludicrous and without merit.
Incidentally, I just returned from a trip that included Athens, Delphi, Istanbul, and Ephesus and saw enough temples and altars to a whole host of gods to last a lifetime.