Pete:
But most people also say they believe that the killing of innocent beings without just cause is not permissible. Is preservation of a way of life sufficient cause to kill other human beings who are not threatening you? Few would say it is, I think. And yet, non-human animals are treated differently. Why? What justifies that?
My argument is that raising a sentient animal simply in order to kill it for your own pleasure is immoral. The animal suffers by having its life ended.
Would it be permissible for me to "farm" human babies, raising them in such a way that all their needs were provided for, but with the proviso that I could kill them when they were, say, 15 years old? Suppose they led happy and healthy lives until the age of 15.
(It's worth mentioning here that the great majority of food animals are NOT raised in such comfort, but are raised in conditions that most people, if they knew about them, would deem as cruel and akin to torture.)
I am arguing that the line between human and non-human is ethically insignificant. At least, it ought to be. If no good reason can be given for treating different species differently in regard to a particular act, then they should not be treated differently.
Correct.
It depends. Are the mice competing directly with humans, so as potentially to deprive humans of needed food? If so, it may be permissible, or even necessary, to kill them. If, on the other hand, they are harming nobody, then there would seem to be no justification for poisoning them.
In this case I think that the purpose in question isn't necessarily what we may think... I think that the eating of meat isn't necessarily for survival, health, or even taste, but more as an affirmation of a particular way of life. Is the preservation of a person's way of life a moral purpose? I don't know... but I do know that many people think it is.
But most people also say they believe that the killing of innocent beings without just cause is not permissible. Is preservation of a way of life sufficient cause to kill other human beings who are not threatening you? Few would say it is, I think. And yet, non-human animals are treated differently. Why? What justifies that?
Am I right, James, that you would consider raising and killing a sentient animal to be immoral, even if that animal never suffered in any way?
My argument is that raising a sentient animal simply in order to kill it for your own pleasure is immoral. The animal suffers by having its life ended.
Would it be permissible for me to "farm" human babies, raising them in such a way that all their needs were provided for, but with the proviso that I could kill them when they were, say, 15 years old? Suppose they led happy and healthy lives until the age of 15.
(It's worth mentioning here that the great majority of food animals are NOT raised in such comfort, but are raised in conditions that most people, if they knew about them, would deem as cruel and akin to torture.)
Together with the aforementioned purpose, I think that the morality of the act is determined by the value placed on non-human sentience; ie sentience and non-humanity are the key determinants, right?
I am arguing that the line between human and non-human is ethically insignificant. At least, it ought to be. If no good reason can be given for treating different species differently in regard to a particular act, then they should not be treated differently.
We all agree that raising and killing plants for food is moral, because plants aren't sentient. We also agree that killing sentient humans is generally immoral.
Correct.
Is setting a mousetrap in a grain barn a moral act? What about laying poison baits?
It depends. Are the mice competing directly with humans, so as potentially to deprive humans of needed food? If so, it may be permissible, or even necessary, to kill them. If, on the other hand, they are harming nobody, then there would seem to be no justification for poisoning them.