To say that nothing can be relied on as factual is throwing the baby out with the bath water. Scholars have been separating the Biblical wheat from the chaff for over 100 years. My current favorite in this field is Bart D. Ehrman from UNC.Can anything in the bibles be relied upon as factual history, when even today Christians don't agree on what is literally true and what is not?
That would be pretty risky wouldn't it?
Let's question the history of Noah's ark and the flood that covered the earth to the tops of the mountains. Does that mean that the flood covered some 'earth'? (dirt)