1. Really, nothing you said suggests that it can only go back to 1000 B.C.E.
Add to that that the Gezer calendar dates to the 10th century (which means we can assume that the language goes back further than that) would suggest the Hebrew language may be older. Not to mention, whether or not the Hebrew language stated in 1000 B.C.E., that doesn't mean that the stories in Genesis couldn't date further back. Many stories are later translated, or simply brought into a new language.
If you take modern archaeological evidence (Finkelstein and Herzog in particular) and add to that the similarities between the ancient Babylonian myths of which I have pointed out only one, the facts seem to indicate that it is possible and even probable that the Hebrew myths were copied from the more ancient Babylonian ones. (further compare this situation to the Cola Wars and by way of such an analogy you may see what I am saying)
As far as I am aware, the Gezer Calender, discovered by R.A.S Macalister in Gezer in 1908, is possibly Phoenician in origin. It may or may not be a form of Paleo-Hebraic the matter is still up in the air as far as scholarship on the matter is concerned. Even if it turned out to be Paleo-Hebraic, it wouldnt take Hebrew much further back than the 10th Century BCE. Further, if you examine both the Hebrew scripts extant today, you come across another interesting curiosity. The Ketav Ivri is said to be derived from the Phoenician language and the Ketav Ashuri is said to be derived from Assyrian, thus, both forms of Hebrew are derived from foreign lands whose peoples were not chosen by the Jewish God YHWH/ELOHIM/ELOAH/EL-SHADAY, but rather the ancient Israelites, being a primitive nation with a seemingly illiterate tribal god/gods, were given no choice but to adopt the languages of the more advanced and influential nations surrounding them, nations whose gods bestowed upon them the gifts of literature, agriculture, music, and all of the other hallmarks of Civilization well in advance of the chosen. Doesnt it seem possible and even probable that in adopting the language of the surrounding nations, they also inherited/adopted the culture as well? This culture included the religious beliefs (myths) and practices of their superior neighbours.
Retrojection. It is as easy as that. They had domesticated camels when the sources for Genesis were redacted. It happens all of the time. Not to mention that Skwim pointed out that this was not necessarily true. And that is also not mentioning that there is a good argument that before widespread domestication, there was small spread domestication. Really though, retrojection easily explains this.
So then you are saying that the retrojections are essentially anachronisms (untruths)? When the stories of Genesis were redacted, they had camels so they made up stories with camels in them, in which the camels were used to convey certain theological meanings and lessons, even though they were not historical events. It does happen all of the time, you are right, and usually when it does and is not honestly referred as mythology but rather history, it is called dishonest!
I addressed Skwims concerns re: Macdonalds finds in Arabia and they are irrelevant to the issue regarding the lack of domesticated Camels in Egypt during the 2nd Millennium BCE. According to both the positive and negative evidences, the Mesopotamians domesticated camels long before the Egyptians, and the Egyptians did not domesticate camels until at least 10th century BCE. This evidence (non-domestication of camels) is not Proof, it is simply evidence and evidence can be interpreted in various ways, for various reasons. There was a while back an Archaeologist called Albright, who claimed to have discovered ancient Egyptian pottery shards in Egypt with pictures of domesticated Camels on them, and without cited his evidence asserted that they were now in the Museum of Cairo. I contacted the Museum in Cairo and also checked with the Louvre and the British Museum and no one has heard of these pre-10th century camel pottery artefacts. The reason I tell you this is that I would prefer to erase an erroneous argument from my arsenal than to have a false piece of evidence, if it is wrong, it is wrong and I move on, no big deal! Thus far, I have yet to find evidence to disqualify the camel issue, but when I do, it will not only disappear from my book, but also from my mind!
We need to be at least able to separate belief from our investigations and if not, there is no point investigating for our beliefs will only lead us to interpret what we find in a manner conducive to our pre-established beliefs.
For my part I am happy to be proven wrong, for I have very little pride, my mind is fertile! I do not believe in god, nor disbelieve, he, she or they may exist, I do not know! He she or they may be all-powerful, limited or even as Nietzsche suggested, dead! We do not know! So if we do not know, what is the point of clinging to beliefs? There is no point!
I will leave you now with both an apology for my tardy response (very busy) and a quote from the Head Professor of Archaeology at Tel Aviv University, Zeev Herzog:
This is what archaeologists have learned from their excavations in the Land of Israel: the Israelites were never in Egypt, did not wander in the desert, did not conquer the land in a military campaign and did not pass it on to the 12 tribes of Israel. Perhaps even harder to swallow is the fact that the united monarchy of David and Solomon, which is described by the Bible as a regional power, was at most a small tribal kingdom. And it will come as an unpleasant shock to many that the God of Israel, Jehovah, had a female consort and that the early Israelite religion adopted monotheism only in the waning period of the monarchy and not at Mount Sinai. Most of those who are engaged in scientific work in the interlocking spheres of the Bible, archaeology and the history of the Jewish people - and who once went into the field looking for proof to corroborate the Bible story - now agree that the historic events relating to the stages of the Jewish people's emergence are radically different from what that story tells.