However, if it is TRUE that many eggs are fertilized, but simply do not implant based on the location in the body at which they were fertilized, then we cannot say that the body itself has an "abortion" when this fertilized egg passes through the system without becoming a viable human life.
If that information is not TRUE then we have a different set of facts and must adjust accordingly, but at this point that is what the textbooks do say about fertilized eggs.
Therefore, it is improper to say "if the egg is fertilized, then it IS an abortion."
If one aborts a mission, then that mission must already have started. If one "aborts" pregnancy, then that pregnancy must already have happened.
For the record, I totally oppose abortion. In the case of abortion brought about by violent rape, I like your categories, and I would consider it homicide, and it would not be by accident, but by some lower level of self-preservation. I would be careful to categorize it as homicide, but I would not have a penalty attached in that particular case.
Not quite sure what you're getting at, but my point is that when a fertilized egg is intentionally "terminated", then a human life has been killed. The state of development of that human life is immaterial to the act of killing it. Human lives are not interchangeable. If Einstein's "fertilized egg" had been "terminated", even if at the precise moment the DNA chains joined and started the process, then that would have been the end of Albert Einstein, and the world would never have had him.
However, if it is TRUE that many eggs are fertilized, but simply do not implant based on the location in the body at which they were fertilized, then we cannot say that the body itself has an "abortion" when this fertilized egg passes through the system without becoming a viable human life.If that information is not TRUE then we have a different set of facts and must adjust accordingly, but at this point that is what the textbooks do say about fertilized eggs.
Maybe his parents would have had another kid they let "go to term". Maybe they'd have named him "Albert" -- but, it wouldn't be the person known to history as "Albert Einstein."
The "bundle of cells" argument is... well, if I were to accurately describe it, some fool would start screeching about Godwin's "law".
Now, as to "fertilized eggs" that do not quite make the cut due to natural events (i.e., tubal pregnancy, miscarriage, etc.), these are the loss of a human life, however, the difference between this "loss of a human life" and the "loss of a human life" due to an intentional abortion, is tantamount to the difference between someone who is killed via a hatchet to the skull, and someone who slips on a patch of ice. In each case, the "cause of death" will be something to the tune of "severe damage to skull", however, the actual difference is plain to see.
Finally, as to what "the textbooks" say, all I'll say on the matter is that "the textbooks" also say that abortion equals "choice", homosexuality equals "diversity", and so forth. Using "the textbooks" as a final authority is not particularly persuasive in this day and age.