It's interesting that those people all have anglo-saxon derived names...
were there many german/english families living in israel at that point in history
and also if you want to contest that they all wrote their stories from first hand experience please explain to me why each gospel portrays the resurrection in a completely different fashion
then of course we could talk about how the majority of christian religious ceremonies occur on the dates of and mimic traditions from significant times in the calendars of religions that pre-date it. (christmas for example is a pagan festival right down to the dressing of a tree, easter is a festival of fertility, essentially every new religion that comes alone takes something from previous religions and tries to rebrand it under their own banner.)
Ultimately, I find it somewhat ironic that someone who espouses the teachings of Jesus so heavily cannot spot allegory when he sees it.
It's a nice story, it has some good messages and some bad, but ultimately, if the bible was a film it would be preceeded by the words
"based on a true story"