eliminate Arab Islam
Spreading Arab paganism, while it would be effective against the jews there is only one ancient book on it written by Muslims denouncing their pagan past. The rest of Arab "paganism" lives within the tribal stories of primarily Bedouin tribes who act outwardly Muslim but still hold onto some of the old idols, one would have to interview all of them to figure out the Ancient Arab ways. Coincidentally the War in Syria has probably caused a huge loss of their collective tribal memory. I only know of one Arab "pagan" though, I doubt while you live you'll be able to break any Arabs from their jewish yoke Religion.