This is evasive. If you really think the mythicist case explains things much better, then you should be able to rattle off the reasons why.
I just don't feel the need to have to rehash the case made that you must already know.
1) The evolution of Christianity from a variety of previous spiritual viewpoints and legends.
2) The lack of any contemporaneous information of Jesus recorded during his life.
3) Active 'mystery religion' and god-men cults
4) The complete Gnostic appearance of Paul.
5) No Gospel tradition known by Paul.
6) No 'Q' tradition known by Paul.
6) Fractured Gospel tradition that both borrows and pays homage to previous hero tradition, as well as OT midrash.
7) Apologists writings that reflect the Gnostic belief in Jesus up into the mid 2nd century.
The whole thing shows an evolution from Paul and his belief in a spiritual savior, to a SLOWLY emerging histocracy. This is much more believable to me than the alternative theory that makes you suppose;
1) Jesus existed and was Crucified. (No records of any of his miracles, message, or resurrection)
2) Nobody for the next two decades really cared or even much noticed. (must be excused away - he was a 'nobody')
3) 20 years later, Paul had a 'Vision' of Christ, but chose to ignore or not learn of his saviors earthly history. (must be excused away - Paul wasn't interested in these matters)
4) When Paul should have related the words and actions of Jesus to resolve doctrine disputes, he didn't. - (must be excused away...)
etc. etc. etc.
It's just too much to take. Maybe all of the various apologies for these situations are valid, and that's why I'm agnostic in this regard.
But, I think it's foolhardy to believe that Occams Razor leads to a historical Christ.