Here in Saudi Arabia where I live, people are still as Muslim as ever, but birth rates are falling sharply because of economic development, the rising cost of living, and the migration to cities.
oh, and why isn't china on here?
1. Is the country not run by religious fundamentalists?
2. Are there things to do to keep the people occupied?
Only missed Cyprus and Singapore
Just a theory. There's also widespread alcoholism, depression, and a lot of economic migration which has led to large gender imbalances.
This, along with another source from the UN seem to indicate declines in fertility rate in Africa are already happening, it's just taking longer than in other parts of the world.
I personally don't mind one bit, I will be long dead and have zero concerns about the world and the changes that affect it.