>>17819407
>Is it because they're Muslims and all Muslims are dumb?
In a roundabout way, yeah.
They have frighteningly high rates of cousin marriage, which means lower IQs, more birth defects, and a dysfunctional societal structure based on clan-like extended families nepotistically trying to undermine one another:
https://www.discovermagazine.com/mind/the-individual-and-social-risks-of-cousin-marriage