I haven’t read Aslan’s book, but if Codrescu’s one real examination of the book regarding the story of Caesar’s coin is accurate, then Codrescu is correct that Aslan has come to a conclusion that is based on inserting his own interpretations at the beginning of the analysis and not on the facts of the story. However, neither Aslan nor Codrescu mention the most important point necessary if we are to have a serviceable historical picture of Jesus the man, and that is that Jesus was an Essene.
Some people hold that to have a picture of Jesus the man we can only use the Gospels, including Acts, of the Bible and we must take them at face value without going beyond the four corners of their pages. From this position the objection is raised that since the Gospels were written in the format of Greek biography and history we cannot say that Jesus was an Essene because the Gospels do not identify him as Essene.
Myths are most definitely real, because there is no "reality" without a myth of what is "real." Believing in something or believing in nothing are both the expressions of myth. "Faith" is a wide spectrum including hopeful supposition, belief, expectation, trust, confidence, and certainty. If we take something "seriously" then that is the evidence that myth is at work in our mind. It is our personal myth of reality that sorts things out as "this is really important" and “this is not important.”