It does not make sense to eat things with of a lack of intelligence as the guiding principle. Would you eat a human if he or her were stupid enough?
But it does pile on more proof for that theory that on some level we are just "inteligence" personified and tend to instinctively act in the interest of inteligence as a concept. Probably also why we're nice to LLMs on principle despite them having zero ability to suffer, and we like to fantasize about making galaxy spanning alliances with smart aliens.
My deontological take is that animals deserve the right for bodily autonomy. Violation of that, even if painless, is unethical.
Plus we all know that most animals are factory farmed and suffering and pain there is not limited to the time of slaughter.
I said all animals deserve a lack of suffering. It sounds like you agree with that.
I said the reason to avoid (or not avoid) killing animals is a different reason from pain. You gave a reason based on bodily autonomy, so it sounds like you agree with that statement.
We might disagree on the specifics of bodily autonomy, but I made my previous post focused and kept those specifics out of the argument.
Modern educated humans are so smart yet so dumb. The city dweller that has never suffered the relentless drive of nature to fuck with him (and instead, sometimes eat him) is quite a specimen.
If all humans had the IQ of a waffle, then it would be reasonably fine to farm humans.
Matrix is a story were sentient machine use humans as feed for energy so not extra-terrestrial but somewhat close.
In the secular world in the West, even human life in itself isn't considered sacred, as exemplified by sentiment on abortion. The moment we pop out into the world though, we assume personhood and are protected by the social contract.