Why is an egg not a chicken?
Good question, I suggest that there is no good answer to it.
Though I have heard that a Chicken is mostly an egg's way of making more eggs.
But as an answer to my question I find it seriously wanting , neither a chicken nor an egg deserves the respect and protection of law that any human being does.
Do you mean that a chicken is not an egg in the same sense that a woman is not a man? That a child is not an adult, a girl is not a woman, or a boy is not a Man?
That is, not in any way that should matter before the law?