 The Christian faith thus becomes its own gravedigger, end quote. And that's at least partly because, Guinness continued, the church failed to distinguish between secularism and secularization. Secularism, that's a way of grouping the various isms of the modern world like scientism, atheism, secular humanism. But to the extent that the church was able to respond to those competing worldviews, there was far less success in resisting all of the traps of secularization.