I think the huge rate of cousin-marriage in Arab countries is also to blame:After 9/11, I read over a dozen books on Islam and I spent some time studying the Koran and the Hadith.
What is totally unacceptable is ignorance. So, please rethink your attitude towards ignorance.
And some cultures should not exist, at least not in their current evil state. The culture of the Soviet Union was evil. The culture of Communist China is evil. All cultures are not good or equal. Unless you have gone woke.
"As of 2016, about 40% of marriages in Egypt were between cousins. Another source (Reproductive Health) puts the figure at 20.9-32.8% for marriages between blood related partners as of 2009, but much higher—60.5-80.4% -- in the region of Nubia.
47-60% of marriages in Iraq are consanguine (blood related), according to a 2009 study in the journal Reproductive Health. In Iraq the right of the cousin has also traditionally been followed as cousin marriage accounts 50%.
30-40% of marriages in Syria are consanguine (blood related) as of 2009.
According to a 2005 BBC report on Pakistani marriage in the United Kingdom, 55% of Pakistanis marry a first cousin."