Is God an idea that preys on our Existential Fear?

When belief systems are highly personal and diverse, they aren't dangerous movements. When they become commoditized, such as how the Roman emperor Constantine co-opted Christianity in order to raid the money of the popular movement, they are methods of mass mind control.

https://en.wikipedia.org/wiki/Extraordinary_Popular_Delusions_and_the_Madness_of_Crowds