I mean, there are currently cheaper sources of protein, that's all that stopping us from using corpses from full industrial purposes now. Even in medicine we're getting kinda close. You can recycle all sorts of useful bits from a corpse...
... you know that's where Mad cow disease came from, right? there's a difference between organ donation and digestion, I think.
I know all about Kuru. I'm not talking about eating people. I'm talking about the theoretical use of human protein waste as feed stock for some kind of algae/fungus. Edit to include, I don't WANT this to happen, I could just very easily see how it would be possible. People can be made to accept a lot of things as necessary.
ah, well, that's a horse of a different colour. As long as we don't all develop motor diseases from eating it i see no problem with using corpses. In the movie, however, the government was pretty much just killing anyone it considered undesirable and making them into food.