Abortion involves killing and discarding something that’s alive. Whether it’s right or not to take the life of any living being depends entirely upon the answer to one question: What kind of being is it? The answer one gives is pivotal, the deciding element that trumps all other considerations.
Let me put the issue plainly. If the unborn is not a human person, no justification for abortion is necessary. However, if the unborn is a human person, no justification for abortion is adequate.