Shirley it depends. Is most leather a byproduct of the food industry? What leather production isn't?
Is stingray skin a byproduct of the food industry? Or are they hunted primarily for it? If they're hunted primarily for it, is the meat used? Is it done sustainably? Etc.
You need to have the answers to those kinds of questions before being able to compare, no?
Good lord! Yes, it obviously does 'depend' - perhaps I should have taken the time to write 'in principle' and saved you from pondering the big questions
