According to British anthropologist Edward Dutton, religious people are more likely to migrate (there are various reasons postulated, but remains unclear why this is so).<ref>[https://www.youtube.com/watch?v=OgKx2lS6lRU Why Are Americans So Religious?]</ref>
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This partly explains why the British people who left Britain and migrated to America in the colonial period were more religious.
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Currently, there are many evangelical Christians and Muslims moving to secular regions (See: [[Growth of evangelical Christianity in irreligious regions]]).
== Poor international cooperation among atheists ==
== Poor international cooperation among atheists ==