Yes but the evidence is that obvious mythologies do not survive geography,syncreticism or history.
Not really. Christianity, Islam, Hinduism, Mormonism, Scientology - all are thriving, all appear to be growing in certain areas at least, if not globally. Obvious mythologies continue to survive - I suspect, though, we have differing ideas of what 'obvious' means in this context.
The trouble for Jesus Myth idea is that communities local to Jesus Palestine which believed he was real existed and were established within a couple of decades of the event. The community which does not believe he was real started less than about two centuries ago.
And the community that thought man could fly, or build cars, or understood germ theory has similarly developed late in history. Of course, the political climate is such that the people that believe Jesus was a myth have been free to make that claim in more recent times.
The real problem, though, is the polarising idea that either 'Jesus is real' or 'Jesus is myth', when the balance of probablities is that there is an origin to the story, but most of the claims put forward are unsustainable frippery hung on that small peg.
Note that that ''jesus myth community'' community was not rabbinical Judaism or the neronic roman empire, nor the spread of Islam nor any powerful bodies far nearer to the time who might have had a vested interest in a fictional Christ.
You mean people with a vested interest in maintaining both the notion of religion and/or the confrontation between religions...
O.