It's not surprising that we can make anything sound however we want by stripping away the context. Let's try adding it back in.

"When indigenous peoples work to make use of all of an animal we call it respect.

Do it in a factory [producing a collagen/cartilage slurry cleansed with ammonia; to maximize profits], and all of the sudden it is gross."

Producing a collagen/cartilage slurry is also known as making a broth or a stew.

To be the fair, the profit incentive goes to economics, which is what "use all of the animal" is really all about.

The opposite of "use all the animal" is "take the skin/prize, burn the rest" ie wasteful.

The gross part isn't using all the animal. Go ahead and make sausage. The issue is pretending a low grade of meat is a higher grade.

Yes, but then they probably use the trimmings to make cord, other materials, if not feed it to the dogs. Trimmings and their processing sounds disgusting, of dubious nutritional value and untransparent in how it is hidden from customers.

And this is coming from an avid kidney pie and liver taco eater.