It is crazy to say that it is a religion. Do you understand what a religion is? Cryptocurrency is simply a boom in technology and the profitability of investing in it, which is the attraction.
Is this not an advancement of technology? I can't see anything cult in nature in making money digital. Some people always have a negative version in suspicion to a positive action. In old times primitives opposed the appearance of money coins because they are used to barter. In similar way that is what happening right now.