Inbreeding in Muslim culture may well have done virtually irreversible
damage to the Muslim gene pool, including extensive damage to its
intelligence, sanity, and health.

According to a BBC report, close to half of all Muslims in the world are inbred.

In
Pakistan, the numbers approach 70%. Even in England, more than half of
Pakistani immigrants are married to their first cousins, and in Denmark
the number of inbred Pakistani immigrants is around 40%. The numbers
are equally devastating in other important Muslim countries: 67% in
Saudi Arabia, 64% in Jordan and Kuwait, 63% in Sudan, 60% in Iraq, and
54% in the United Arab Emirates and Qatar.