If you say chickens are only valuable because they feed humans, you are admitting they do not have any intrinsic value.
You are misunderstanding the meaning of the word “value” in this context, you almost use it like monetary value, but this is not accurate.
Also, we are not talking about value for someone, but value for itself. A human is valuable not because he is useful, but for himself. Even Aristotle said that the difference between a free man and a slave is that a free man exists for himself while a slave exists for others. By that rationale, not recognising intrinsic value within oneself but instead viewing ones value in terms of your worth to society is slave mentality.
If you say chickens are only valuable because they feed humans, you are admitting they do not have any intrinsic value.
You are misunderstanding the meaning of the word “value” in this context, you almost use it like monetary value, but this is not accurate.
Also, we are not talking about value for someone, but value for itself. A human is valuable not because he is useful, but for himself. Even Aristotle said that the difference between a free man and a slave is that a free man exists for himself while a slave exists for others. By that rationale, not recognising intrinsic value within oneself but instead viewing ones value in terms of your worth to society is slave mentality.