I didn't at any stage say "human person", I intentionally used the term "human being". And I think that the suggestion that any kind of human being, at any stage of their development or subsequent life, should ever be regarded as "property" is a hideous notion.

"Personhood" is a term that has not been defined in law so far as I am aware. After all, is a new born baby born prematurely more of a person than a fetus in the late stages of pregnancy who may in fact be more fully developed? The significant factor in legal terms, in this country anyway, appears to be viability, the ability to survive outside the womb.