Why would "being the true religion" have to be a monopoly ? It could be like bitcoin and have lots of "alts".
Instead of going to the moon they promote going to heaven or re-incarnation.

I know that they are not really going to the moon. It is just the shills that say that to make you believe and hand over money,  

Treat is as a metaphor. If you behave like a decent person you generally live a happy and trouble free life.

Maybe you should diversify your religious investments. Spread the risk.  

Then again - perhaps that only works with non imaginary things.