I like this article and I think it has a lot of merit.
But I believe it excludes a facet of the ersatz - religions. The rise of far Eastern philosophies and religions. All Western nations ankle bite each other, but are in reality connected / tied together and face the same threats and have the same social trends / movements. The reasons for this are for another thread.
However, from Northern Europe to North America, you have the rise of far Eastern religions even among multi-generational Western Caucasians. In particular, these are Buddhism and these Indian Guru’s etc. This way of thinking is “spiritual” and “philosophical” but it excludes Christianity. It typically works very well in conjunction with a globalist, pacifist, more liberal way of thinking where people still want a spiritual component in their life but not be confined by Christian values.
Yes, people are becoming less Christian, but they are also flocking to other religions or philosophies, including Buddhism, Hinduism or these Guru’s, and even Islam.
As to the cause for the loss of Christianity? #1 Public education (It’s secular and at best agnostic, in many cases atheist/socialist even though it’s not perceived as such). #2 Hollywood, the arts and media. #3 Globalization (change in demographics and government policies to support this globalization). Now it’s a self perpetuation loop that feeds itself. Once these things become established as a trend, changing trajectory is extremely difficult, may it be the radicalization of Islam that started in the 70s and continues today, or the loss of Christianity and it’s value system in Western nations...