How then do you explain the fact that the Joseph story clearly alludes to a flourishing trade with Arabia via camel caravans that has been archaeologically and textually dated to the period of Assyrian empire?
25 Then they sat down to eat; and looking up they saw a caravan of Ishmaelites coming from Gilead, with their camels carrying gum, balm, and resin, on their way to carry it down to Egypt. 26 Then Judah said to his brothers, “What profit is it if we kill our brother and conceal his blood? 27 Come, let us sell him to the Ishmaelites, and not lay our hands on him, for he is our brother, our own flesh.” And his brothers agreed.
Also see,
Back to the roots and routes of dromedary domestication
the domestication of the dromedary took place rather late in human history, most likely at the transition between the second and first millennia before the Common Era (B.C.E.) (
8). Archaeologists can indeed trace the emergence of key domestication markers around that time (
9), including a significant reduction in the size of bone remains, an increasing association with human settlement, and unambiguous artistic representations.
The Incense trade route (
Fig. 1) is one such example, where
large caravans of dromedaries carried myrrh and frankincense from South Arabia, spices from India, and other luxury goods throughout the Arabian Peninsula and the Levant, effectively connecting the cultures and civilizations of antiquity from the seventh century B.C.E. to the second century Common Era (C.E.).
Also see this book page 305,
Archaeozoology of the Near East
Camel use for riding and trade cannot be traced before 900 BCE and becomes an important form of trade after 800 BCE, earliest.