[0]https://modernfarmer.com/2016/05/raising-pigs/#:~:text=Most%....
That's as serious of an answer as I can give. It's the same reason I never neutered my cats, since it felt like a mutilation.
My point is - we are not cats, and cats aren't humans. They deserve good treatment, respect and all the love they can get - but at the end of the day they are not humans and should not be treated as such.
Suppose a cat had fingers, and basic language ability. Would you still feel the same way?
Suppose we didn't slaughter the other five proto-human species (Neanderthals et al). Would you still feel the same way?
The line gets blurrier the more you think it over.
It would no longer be a cat.
That's why "If you (a human) were a cat" is a problem, b/c you need to say what level of human/cat this hybrid creature is imagined to be.
It's like that joke: "Behold! The dog with two heads! and two bodies!"
Your earlier comment mentioned morality without qualifiers; here you refer to your own morality; this seems more accurate. Note that there are people who refuse to eat or otherwise harm animals and they cite moral reasons too.
It comes back to the question if never being born at all is better than some (domesticated) life at all.
I'm a vegetarian.
Grow me a goddamned lung pig.