Therefore, does anyone support the historicity of the Adam and Eve story
The Adam and Eve story is structured in history as a single reference to ancient mythological expressions.
There were and are many other mythological stories to the creation of the world in which we live by other ancient civilizations to be noted.
Why this came about is that humanity in the past didn't have the knowledge of which we have today, the ancients had to endure through the ignorance of which they were forced to inherent.
Human ignorance is a indefensible fact but I think we should keep an open mind to discoveries which may appear into the future.