Islam rested upon the shoulders of higher civilization until it broke them down. It took a while, but not long, for the inherent ignorance of Islam to destroy the remnants of the civilizations it infected. Islam hasn’t produced anything of value, solely because of its virtues, because it has none.
Islam is death, and it will never be anything but death.
the Africans have done the same with the former colonies there.
It takes awhile and is only noticeable over a long period of time, but eventually the infrastructure that was built prior to their conquest starts to decay and without the ability or willingness to repair/replace it they whole society crumbles back into the dust.
When you have a culture whose god is unreasonable how can they embrace reason?