I had an idea today about an alternate future where fanboyism has gone further and has superseded religion. Basically people have given up on putting their faith in insubstantial supernatural being and instead invest their faith in brands.
Anyone who has met an Apple fan boy/girl knows that the level of zeal and devotion they have towards their fruit computers. The same is true of the drinkers of Irn Bru and some Jack Daniels drinkers.
I envision this being a polytheistic society where people believe in different brands for different spheres of influence, but rival sects wouldn’t want to freely intermingle for example two people might be in the global cult of Pepsi both hating their arch nemesis Coca-Cola, but they may have religious differences when it came to which beer they supported.
Some brands have global appeal and some might be considered to be no more than Cults, For example Irn Bru is a cult which has a bit of a powers in Scotland but is fairly obscure elsewhere.