A sense of spirituality is a human experience,
People just believe in a higher power. And those who claim that they do not believe will try anything in a helpless situation. The recipe or snake oil that people use in the form of method and ritual to attempt to reach out to that higher power is taxing, very expensive and time consuming. A lot of people are finding that they are short on time and cash in our modern age and so are cutting time consuming and expensive religion as part of their schedule and expense. This results in empty churches which will force the churches to close. Many people have realized that the potion they have been using or that their parents used does not work and don't buy it unless they absolutely have to, like for a wedding or a funeral. In some countries in the past, the church was part of people's daily lives, and who would ever think that it would be possible for Spain, a fanatically catholic society, to cut religion from their culture -but they have.
In Islam and Judaism, religion is integrated into the culture and it is just the way people live and who could ever think that it would be possible to disintegrate these respective religions from people's lives and culture and customs. And in the US, religion is integrated into the Constitution and it appears impossible to ax religion. Green backs are baked by the US army and a trust in god declaration ( just in case.) Hence, besides people not needing snake oil anymore, religion is woven into the fabric of society, government and economy and that is why it can only be surgically removed, it cannot disintegrate on its own even if it dries out .Yet, even without expensive potions being sold, as long as there are people, people will always believe in a higher power and attempt to reach out to it.