There is no point arguing with a Christian apologetic who uses the traditional assertions of a human christ and his resurrection as base line facts. Let me suggest the sociological approach to interpreting what people did in the Levant two thousand years ago is outlined in "A short history of Christianity by JM Robertson."
The real understanding of the Christ story pre-dates (as I indicated) the folk accounts of the pre-christian christs and comes from the pre-literate mnemonics of "star talk". The explanations of what the heavenly bodies were up to in their annual circumnavigation of planet earth from a pre-Copernican viewpoint.