As far as I can tell you see abortion as an “exception” that allows killing of a specific type of human.

While I am not really concerned with humanness. But of the underlying phenomenon that make protecting humans something we should want to do.

If you think about why we want to protect humans and tie to to consciousness and ability to suffer. There’s no exception and we can use our knowledge of human fetus development to inform abortion policy to prevent abortions that would infringe on those conditions.