I wasn't questioning whether these people were indoctrinated before they came her. What I don't know is if the Arabs who have been indoctrinated by these schools believe what they were taught, or just know that they had better say that they hold those beliefs.
Don't get the idea that this is anything new for religious organizations to do. Note the origin of the word propaganda in the modern sense:
"In 1622, the Vatican established the Sacra Congregatio de Propaganda Fide, meaning the sacred congregation for propagating the faith of the Roman Catholic Church. Because the propaganda of the Roman Catholic Church had as its intent spreading the faith to the New World, as well as opposing Protestantism, the word propaganda lost its neutrality and subsequent usage has rendered the term pejorative." (Jowett & O'Donnell. Propaganda and persuasion. 1999. p. 2)
By the way, one of the more interesting courses I took in college was one entitled "Propaganda." It was in the Communications Department, the only course I took from that department. I think one reason I was interested in it in the first place was that I had a high school English teacher who taught us how to recognize when advertisers were trying to deceive us. Once you know what they mean, the ads don't work any more. Two examples:
Three out of four doctors recommend ... [This doesn't mean 3/4 of all doctors; it means that they asked four doctors at a time, and the best they ever got was three of the four recommending their product.]
In a recent survey, seven out of ten doctors recommended ... [They had been hoping for nine out of ten, so they kept running the survey, ten doctors at a time, but finally stopped while they could still claim that the time they got seven out of ten was "recent."]
Save up to 40%. [This doesn't mean you will save 40%. It doesn't mean that anyone will save 40%. It doesn't even mean anyone will save anything at all. They might even be changing more that usual. It only means that they are promising that you will not save more that 40%.]