Christian Creation Story Borrowed?

The creation story found in the Holy Bible  is very similar to Egyptian creation myths.  The common thread between the two is waters of chaos, sky, earth, and moisture.  The difference being that each of these things according to Egyptian myths is that they were deities in and of themselves representing physical aspects of the universe.  Nut for sky, Geb the earth, Shu representing dry air and separated the sky and earth, Nun the waters of chaos, Tefnut moisture such as rain, dew, etc. 

Other than the difference of the Egyptian gods representing physical aspects the stories read very similar to each other.  Other similarities can be found between the Jewish/Christian beliefs such as upon death a persons life is evaluated on a balance scale in order for the deceased to be able to pass on to a form of heaven.  The Egyptian deity Horus compares to the Christian St. Peter?

 Myths from Mesopotamia should be included in the Genesis myth stories, namely, the Tree of Life in Gen. 3:22. Clay tablets found in Sumeria show drawings of the Tree of Life as depicted from 2,500 BCE.  Of course many are aware that the Mesopotamians had a flood story comparable to that found in the Christian Bible.  It was the story of a Mesopotamian hero named Gilgamesh.

The Egyptian god Atum emerged from Nun the primeval waters.  A variety of myths relate how animals and man were made from clay very similarly to the story in the Bible. 

What is the significance of the parallels between the Egyptian myths and the stories as told in Genesis?

It eliminates the uniqueness of the Bible for one thing.  It puts in question the literalness of the Bible which some Christians claim it to be.  The earth is no longer 6000 years old, there was no flood, Jericos walls did not fall down when horns blew and soldiers shouted, David did not slay Goliath, Moses did not lead the Jews through the desert for forty years.  If one thing is not true the whole book possibly is not true.