Knotty problem, but I think the Saudis are aware of it and are going to attempt to do something about it. It's a disgrace that the education system in those countries is so poor since their people have the intelligence to really contribute to the world. The main problem will be to get fundamentalism under control and as far as I'm concerned the best way to do that is to get the population working and producing.
With Iraq out of the way, a lot of money that has been diverted to defense could be aimed at education and investment in the business sector. They need to stop wasting money on things like trying to grow wheat in the desert (just import some of the cheap wheat that is available) and spend the money on things that will utilize their strengths. I'd rather see them exporting good rather than exporting fanatics.
With power and irrigation they could rival the Central valley of California for Food Production!