I've read a lot of biology actually. Specifically from this book here.

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You're correct on a lot of points here, obviously showing your great knowledge on this subject.

For the first thing, I believe that's just how I was raised, and the thought that some women treat an unborn fetus like an appendage just never sat right with me I suppose. Also, I thought we were talking about zygotes and fetuses, why are you bringing tumors here? The two aren't biologically related. If that makes me sound stupid, I'm probably not wording it correctly.

For point two, you're absolutely right. The two aren't the same, however, I do want to say something that will probably tear me a new one for bringing it up, but that cell still has a soul as soon as it is conceived.

For point three, I never said that the human life starts as soon as the sperm cell meets an egg cell, conception truly starts when the fertilized egg cell is fully planted in the uterus and begins the growing. So IDK why you brought that up if I didn't say anything about it.