I didn't single out Muslims, I said any families that have 7-10 kids. Those kids eventually move into the cities and use the modern amenities everyone else uses. Unless you think all those people will stay poor and underdeveloped for the next 50 years.
I did however link to a Wikipedia article that lists the birth rates of Muslims, Christians and others.
You're implying that religion has something to do with it when it's the wrong factor to be looking at. The birth rates in Brazil and Philippines are high as well, but those are very Christian countries. Meanwhile Russia, arguably Christian (Orthodox) has a very low birth rate which drags down the average.
That article also shows declining birth rates in the Muslim world, which is to be expected as poverty and education issues are addressed.
> Those kids eventually move into the cities and use the modern amenities everyone else uses. Unless you think all those people will stay poor and underdeveloped for the next 50 years.
It really depends on the country in question and how stable their political future is. I can see Malaysia making big gains, but South Sudan and Syria still being a total mess.
There are some countries which were resource poor to start with and will never get ahead without some kind of political partnership, while others have huge, largely untapped sources of potential wealth.
I did however link to a Wikipedia article that lists the birth rates of Muslims, Christians and others.