Religion
In reply to the discussion: Interesting news: why faith is becoming more and more popular [View all]qazplm135
(7,508 posts)"The short answer is religion is on the wane in western Europe and North America, and its growing everywhere else."
So it's not becoming "more and more popular" here, it's becoming less popular.
And the reason seems pretty clear...Islam and Hinduism are the fastest growing religions, and they are, again, according to your linked article, having more babies than Christians and non-religious people.
So basically, religion is growing in the ME and Africa (a large part of that due to Islam), and it is growing in China (and one assumes Russia) because both of those governments have moved from an atheistic stance to one of more (somewhat) religious freedom.
I don't think anyone said "religion is dying out." But it does certainly seem true that the more educated a population is, and the more culturally and politically free it is, the more likely that it will have a larger population of non-believers.