"In such austere isolated conditions, they'll be suffering for much of their lives. For sure, it would get a lot of attention from animal rights groups."
Yes, but do you want your inside-a-pig-grown organs-for-humans or not?
This post needs a final line based on the old Groucho Marx joke: "Outside of a dog, a book is man's best friend. Inside of a dog it's too dark to read."
Outside of a pig, medical technology is man's best friend. Inside of a pig it's too dark to read about ethics.