Christian references in the Cantos were probably incidental, given the expected familiarity of the intended audience (american white male young men). eg The Matrix trilogy started with the obvious messianic hero's journey, then attempted to expand it in the following films (karma, cycles of death and rebirth, etc).
For some, these religious messages can be a turn off, I agree. I happened to be raised in a culture that allowed me to ignore it more or less and I can recognize that.