I was having a discussion with a friend recently on whether it is beneficial, overall, for us to be vegetarian for farm animals, from a consequentialist viewpoint. Currently, farm animals are bred in extremely large numbers in farms, out of which a large portion is for human consumption. If there is more vegetarianism in the world, then the breeding of farm animals would reduce drastically as the demand falls.
This means, that a lot of lives that could have existed would not exist if vegetarianism becomes substantially more popular.
This brings us to the nonidentity problem. If farm life is worth living for animals, then non-vegetarianism actually improves the overall welfare. If farm life is worse than not existing for animals, then killing all farm animals is an improvement over letting them continue to live.
- Is my interpretation of the nonidentity problem in this context correct?
- Particularly, is the second part of killing all farm animals covered in the nonidentity problem? If not, is this part still logically sound? If not, how?
- What are some other problems with this line of argument, if any?