In Pakistan, about half of all registered marriages are between first cousins.
This is widespread in Islam, and has been going on for centuries.
This madness could well be driven, in part, by inbreeding.
Amazing that this is not very well know, the custom of marrying close relatives in Islam.
He may have. He just sent his daughter, rather mentally deficient, back to the homeland. He also explained Beirut to me, something I NEVER heard from our Gov. or news media...and never will.