[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.