Yes pretty much all of the above. Forcing a sentient being to live an existence that it didn't evolve for is extremely cruel. Even animals such as cows and chickens have social and emotional needs that were built into them in millions of years of evolution. A couple thousand years of domestication don't turn them into automata that can be treated as a product whose purpose it is to make our food taste a little better, but which we can easily find substitutes for.