There is no consensus that Moses is mythology. Some scholars think its mythology because there is no archeological evidences. But that's an extreme mythicist view. If you think that's a scholars consensus, you are absolutely wrong. There is no scholarly consensus on that. It is a fringe view. Scholars dont really go there. Scholars generally work with the text, take a methodological approach of naturalism, and make criticisms based on already developed techniques or some may even intent new techniques.
There are some scholars who engage in mythicism and mind you there are some highly educated and valid scholars in the field, but that's not "consensus".
You have a strawman argument that has nothing to do with the work of Thomas Thompson. All historians are in consensus that Moses is a myth. Fransesca Stravopolou, Elaine Pagels, Carrier, Ehrman, Goodacre, you clearly do not read actual historicity.
Jesus mythicism is a smaller belief but OT is all myth. No scholar thinks otherwise who is a historian. Just fundamentalist theologians. Scholarship does not think there was a world flood and so on.
Even most Christians do not believe these stories are anything but myth.
Moses - Wikipedia
Generally Moses is seen as a
legendary figure,
Biblical archeologist Carol Meyers:
"
Q: Let's turn to one of the most vivid figures in the Bible, Moses. Who is the Moses of the Bible, and could there have been such a person?
Meyers: The Moses of the Bible is larger than life. The Moses of the Bible is a diplomat negotiating with the pharaoh; he is a lawgiver bringing the Ten Commandments, the Covenant, down from Sinai. The Moses of the Bible is a military man leading the Israelites in battles. He's the one who organizes Israel's judiciary. He's also the prophet par excellence and a quasi-priestly figure involved in offering sacrifices and setting up the priestly complex, the tabernacle. There's virtually nothing in terms of national leadership that Moses doesn't do. And, of course, he's also a person, a family man.
Now, no one individual could possibly have done all that. So the tales are a kind of aggrandizement. He is also associated with miracles—the memorable story of being found in a basket in the Nile and being saved, miraculously, to grow up in the pharaoh's household. And he dies somewhere in the mountains of Moab. Only God knows where he's buried; God is said to have buried him. This is highly unusual and, again, accords him a special place.
The Historicity of the Patriarchal Narratives: The Quest for the Historical Abraham Paperback – November 1, 2002
by
Thomas L. Thompson
Completely dismantles the historic patriarchal narratives. His impeccable scholarship, his astounding mastery of the sources, and rigorous detailed examination of the archaeological claims makes this book one I will immediately take with me in case of a flood. And it still hasn't been refuted. I am well aware of the excellent work of William G. Dever, and his critique of the "minimalists" and his harping against Thompson, but it is his other books Dever has the most beef against. This one stands stellar and strong. I was absolutely bowled over by it. The second time through is even more astonishing.
Thomas Thompson's PhD professor was a Cardinal who refused to accept his PhD. He had to go to Canada to work. Over the years scholars realized his work was brilliant and was peer-reviewd and is now a classic. Moses is a myth.
Why you would need a archeologist to tell you that ancient myths from all nations were myths, every nation had their "one true God" and religious figures and laws from God, this is how societies worked then. Now we know it's made up by people.
The creation stories and flood stories mirror Mesopotamian stories, Job has a Babylonian counterpart, Exodus is a foundation myth, Yahweh started out as a warrior God who's consort was Ashers (a Canaanite goddess). Just because one culture has myths that survived doesn't make them any more real than Egyptian or Greek myths.