I’d disagree with marriage/religion being a thing. The US is a highly religious country where a significant portion of people believe the world is flat and 4000 years old - which is more indoctrined than Muslims, and it also has one of the highest divorce rates in the world.
On the other hand, divorce rates among married people are dropping in the far less religious European countries after peaking in the 1980s.
The rate is mainly lower in Islamic nation’s because of legal difficulties and inequality. Divorce rates in India and some Latin American countries which only recently gained the legal ability to divorce are FAR lower than Islamic countries.
This just certainly isn't true.
Flat earthers would be at most 0.1% and I feel that's very generous. And even in young Earth creationism, no one believes that the Earth predates the Torah lol.