Question

why do they killing many anmals and eating them?​

Answer 1

Answer:

Even the most humane forms of rearing and killing animals for food always violates the animal's most basic interest - to continue living. Modern agriculture often violates other key animal interests as well - for example: to live in natural (or at least, decent) conditions. to make free choices.

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Answer 2

Answer:

If you accept that animals have rights, raising and killing animals for food is morally wrong. An animal raised for food is being used by others rather than being respected for itself. In philosopher's terms it is being treated as a means to human ends and not as an end