And even then, should it? Morality is a fluid concept, not laws set in stone. Take two people and give them a series of hypothetical moral puzzles, and they'll likely give different answers.
More simply that the ideas and attributes generally associated with the concept of 'humanity' aren't exclusive to biological humans. So why should it be 'humanity' that's the defining term? Were humankind the first to feel? I don't think so.
But I suppose that's part of the first point. The debate only applies when 'humanity' is being considered some moral pinnacle.
Yup!
More simply that the ideas and attributes generally associated with the concept of 'humanity' aren't exclusive to biological humans. So why should it be 'humanity' that's the defining term? Were humankind the first to feel? I don't think so.
But I suppose that's part of the first point. The debate only applies when 'humanity' is being considered some moral pinnacle.