.
Rightly or wrongly (depending perhaps on simply where you were born), the cultures of the Saudi's, Iranians, Pakistani's, etc have far more in common with each other than they do with the 'Western World' which is essentially Christian and
generally not well disposed towards other belief systems. So it shouldn't surprise anyone that people will favour those of the same beliefs.
Religion and politics, eh?
They're both intertwined in a nasty mess.