"Modern day scholars believe the historicity of the events in the Joseph narrative cannot be demonstrated. Hermann Gunkel, Hugo Gressmann and Gerhard von Rad identified the story of Joseph as a literary composition, in the genre of romance, or the novella. As a novella, it is read as reworking legends and myths, in particular the motifs of his reburial in Canaan, associated with the Egyptian god Osiris. Others compare the burial of his bones at Shechem, with the disposal of Dionysus's bones at Delphi."
In the Wiki article on Abraham, we discover that the great founder of the Abrahamic cultus of Judaism, Christianity and Islam, also is questionable as a historical figure:
"According to archeologist William Dever, by the last quarter of the 20th century, 'respectable archaeologists [had] given up hope of recovering any context that would make Abraham, Isaac or Jacob credible "historical figures"'."
The Israelite lawgiver, Moses, too is given up to myth:
"The existence of Moses as well as the veracity of the Exodus story are disputed amongst archaeologists and Egyptologists, with experts in the field of biblical criticism citing logical inconsistencies, new archaeological evidence, historical evidence, and related origin myths in Canaanite culture."
Wiki thus relates the modern scholarly debate about whether or not Moses was a historical figure, also providing comparisons from other cultures. But to do so with the most supernatural personage in the Bible, Jesus Christ, why that's just keeeerazy, and all of those who do so must be shouted down and driven from the public square! :( Indeed, questioning these patriarchs' historicity is "respectable scholarship," but, we are constantly told, "no serious scholar questions Jesus's existence."
Abraham/Isaac/Jacob mythicism = respectable! Moses mythicism = good! Jesus mythicism = very, very baaaad!
What happened to fool me once, shame on you, fool me twice, shame on me?
No Evidence For Abraham, Moses "or "Jesus
As concerns the purported extrabiblical evidence for Jesus, this contention has been addressed and refuted many times over the centuries. Please read these articles for starters:
http://truthbeknown.com/pliny.htm
http://truthbeknown.com/josephus.htm
http://www.freethoughtnation.com/contributing-writers/63-acharya-s/672-does-josephus-prove-a-historical-jesus.html
http://www.truthbeknown.com/suetoniuschresto.html
There is more, and I have written about this subject extensively over the decades, including in my books.
Further Reading
What is a Mythicist?
Historicity and composition of the Abraham narrative
Joseph's historicity
Moses on Wiki
