If being born and raised for slaughter makes that slaughter justified, then would it be ok to kill and eat humans if they were born and raised for that purpose? This argument doesn't hold water.
If being born and raised for slaughter makes that slaughter justified, then would it be ok to kill and eat humans if they were born and raised for that purpose? This argument doesn't hold water.
According to our laws humans have some rights by just being a human. Some animals have rights only because humans like them. Cockroaches have no rights because humans don't like them. Bear which killed human have no rights and will be killed to prevent more deaths, because humans don't like him. Cute kitten have a lot of rights because people like him and will be angry if they find out that someone tortures that cute kitten. Nobody will be angry if some kid tortures cockroach. It'll be disgusting, but that's about it.
I don't disagree, but if that's the argument, then make that argument, instead of nonsense about being raised for slaughter.
Being human means you can plan things out and recall the passage of time by sharing stories. Language and higher thought make us peculiar in that regard; they give us a past and a future, which is why you're destroying something if you end a human being's life early.
For a similar reason, we have rules against causing suffering that apply to animals that can suffer.
I'm pretty sure we would not farm cows if cows were as intelligent and threatening as us and took 15 years to become adult, we would just exterminate them because they would be a threat, or make a peace treaty, just like human societies do.
If I had to try to explain it, I think it's either people have internalized hierarchies about nature "hard wired" intuitively and/or also passed down by culture, where animals like livestock are "meant" to be food. I don't know nearly enough about anything to speculate on which if either is the case.
I'm not stating that as fact, or that it's a good thing, only that's what I've observed. Humanity seems to be predisposed to this kind of "you're made to do this", and it's definitely not always good or ethical.
But I don't think that it's "inconsistent", if that's what you believe. Unethical, maybe, but not inconsistent.