This subject is not about whether Jesus existed, or did not, but tries to give an alternative theory.
What is C h r i s t i a n i t y without Jesus?
What he is describing about the space alien Jesus as an Angel before the New Testament, sounds like another version of the myth of Adam Kadmon (Primordial Adam), Zoroastrian Anthropos, or the Ze`ir Anpin. Richard Carrier has actually demonstrated, that some early Christian sects existed that did also believe the Gospels were allegorical myths; and that 2 Peter was written or devised to discredit those sects.
Did Jesus Even Exist?