I've noticed that pro-life people tend to slide around with the terms they use. A foetus is a person, then a human being, then a baby, and so on. I feel suspicious about this, as it looks like a kind of sleight of hand.
So just now, I ask what a person is, and there is no answer, but a description of human life. Well, sure, my toe nail is huiman.
Why is there this slipperiness?