[dragonwriter]

> The whole structure of what?

The structure of the system of practices which includes the things described as the "the good parts", insofar as it makes sense to "branch" a religion and separate the belief in God from "the good parts" and continue as an organized system.

> Europe is largely godless yet the society holds together just fine.

I don't disagree with that, but I also don't think that's an example of what k-mcgrady was suggesting with branching Christianity and keeping "the good parts".