Personally, if I was about to be made a slave, that is what would bother me, not if someone was about to take my donkey.
At any rate the sons of Jacob are depicted as using donkeys as beasts of burden, not camels.
This article has a bizarre conclusion. Camels in Somalia, in Saudi, and in Mesopotamia in early to middle Bronze Age (3000-2000BCish), but somehow they're not permitted to be in an area that's at the juncture of all those areas.
Something or someone's logic smells shallow to me.