Christianity is, on the one hand, “Platonism for the People”, as Nietsche said, creating the idea of a “reality” that lies behind or beyond appearances. It also conceals (and protects) the mythos of currency as substantial and inherently valuable, which is the only justification for the possibility of accumulation (and therefore wealth). Thirdly it jusifies arithmetic and mathematics as revealing something about reality rather than being simply a game with no empirical implications, and thus all modern science. Fourthly it is the basis for the sense of the self as the “interior person” that all modern psychology is based on.
I’m all for exposing Christianity as at root a superstitious way of structuring experience, if those that do so ALSO accept that their notions of reality, economics, science and their sense of self are equally based on nothing more than superstition and must be rethought.
How many so-called “atheists” or “rationalists” are willing to do those things? I suspect not many.