Strangley, the author does virtually nothing to provide the promised explanation: he merely demonstrates that it's happening and that it bodes ill.Why the world’s Muslim population is growing so very, very quickly
However, the two (at the moment) comments go some way to putting him right. In fact I've posted this because of the comment by "All_Comments_Matter" who says this:
https://www.washingtonpost.com/news/worldviews/wp/2016/09/09/where-and-why-the-median-age-for-muslims-is-so-lowThe stats showing the growth of Islam have to do with birthrates, not adult conversions (few adults in their right mind would ever convert to Islam except at the point of a sword). Is Islam an ethnic identity then, like Judaism? If so, how come I never meet atheist/agnostic Muslims in the same that I meet plenty of atheist/agnostic Jews.
Islam is a mutation of the idea of "faith" spliced with the DNA of an oppressive socio-political structure. You are born into it, and then you can't leave under threat of death/persecution in many places. The socio-politics that Islam promotes are an abject failure; which is why the Muslims who are able flock by the millions to Westernized countries where there is hope for a decent life.