I doubt subjective descriptions of what a "valid expression" of Christianity is will ever lead us to proper conclusions.
A Christian is someone who believes in God. In most cases, the god that is described in the Bible. Anyone who doesn't fit in this objective description is not considered a Christian. End of story.
A Christian is someone who believes in God. In most cases, the god that is described in the Bible. Anyone who doesn't fit in this objective description is not considered a Christian. End of story.