Egyptian Mythology tells a lot of the most important stories of the Bible in incredible accuracy, but PREDATES the Bible by very many years.
If this is true than that makes the Bible a copy and the Christian religion completely crumbles..
How can we combat this?
Well that escalated quickly.
I'm unaware of many parallels in biblical stories and Egyptian mythology--there are however parallels in Mesopotamian mythology, such as the Enuma Elish and the Epic of Gilgamesh.
But that the Hebrews had myths in common with other near eastern cultures doesn't make the Bible a "copy", the Bible contains a great deal of original material in the first place, also the Christian religion isn't dependent on the stories of mythological accounts in Genesis being literally true; the Christian religion is dependent on the story of Jesus, including His passion and resurrection, being historically true.
If one wanted to make the Christian religion crumble, it would be as simple as finding a way to irrefutably demonstrate that either
A. Jesus of Nazareth never existed
B. The historical Jesus is still dead.
These are the historical linchpins upon which the entire Christian theological structure stands or falls.
However proving A is somewhat difficult and very few credible historians or scholars entertain the notion that there was no Jesus at all; and B would effectively have to require finding Jesus' bodily remains. Finding the remains of a two thousand year old dead man and being able to properly identify them as being Jesus seems like a difficult chore.
Ultimately, I'd say, even these are unfalsifiable faith claims which Christianity makes, and the issue with unfalsifiability is that it renders the veracity of the claim to be rather indeterminable. And is most likely in the same category as things such as "there's an invisible pink unicorn" or "G/gods exist" etc.
That's the difficulty with faith claims, they aren't believed because of their demonstrable credibility, but usually in spite of that.
-CryptoLutheran