Fact 1: As pointed out above in the background section, there is a radical difference, scientifically, between parts of a human being that only possess "human life" and
a human embryo or human fetus that is an actual "human being." Abortion is the destruction of a human being. Destroying a human sperm or a human oocyte would not constitute abortion, since neither are human beings. The issue is not when does human life begin, but rather when does the life of every human being begin. A human kidney or liver, a human skin cell, a sperm or an oocyte all possess human life, but they are not human beings they are only parts of a human being. If a single sperm or a single oocyte were implanted into a woman's uterus, they would not grow; they would simply disintegrate.
Myth 2: "The product of fertilization is simply a blob, a bunch of cells, a piece of the mother's tissues"
Fact 2: As demonstrated above, the human embryonic organism formed at fertilization is a whole human being, and therefore it is not just a "blob" or a "bunch of cells." This new human individual also has a mixture of both the mother's and the father's chromosomes, and therefore it is not just a "piece of the mother's tissues". Quoting Carlson:
"... [T]hrough the mingling of maternal and paternal chromosomes, the zygote is a genetically unique product of chromosomal reassortment, which is important for the viability of any species."15 (Emphasis added.)
https://www.princeton.edu/~prolife/articles/wdhbb.html