Religious membership is strongly connected to age, with older Americans more likely to belong to a church, synagogue or mosque. Two-thirds of traditionalists, Americans born before 1946, report belonging to a religious institution, compared to 58% of baby boomers, 50% of Generation Xers and 36% of millennials.
Religions abound because people need spiritual guidance. If it's not Christianity or another established religion, it can be Marxism, Wokism, Democratism, the Earth Goddess or whatever. Christianity has 2000 years of history behind it, while some of the others just popped up recently and will be gone just as quickly as people realize their shortcomings.
Without a belief, most people are lost. They kid themselves that they are above all that, or that their lives are complete with logic standing in for spirituality. And very few people have that sort of logical capacity, if anyone does.
When religion is lost, people will seek new religions (though they may not call it a religion). Most will fail and the tide will turn back to more proven and tested belief systems.
Nothing new here.
Do you really believe that younger generations in the West are suddenly enlightened lightyears past every previous generation for 1000s of years? Honestly, turn on your TV. Look at Twitter, TikTok and Instagram. This is the new enlightened and superior generation that can discard 2000 years of social consensus? It's an impressively narcissistic thing to believe - maybe not surprising given the narcissistic era we live in.
It's great for a society to grow and adapt. But discarding everything that came before usually ends quite badly. It's like burning down an old house in summer because you have a better idea for a house, but no building or architectural experience. It gets ugly when winter comes.