Because most people believe that abortion is murder because you are killing a baby

The “baby” is a zygote which lacks the feeling and development of a fully grown human. One gains rights by being developed, as is manifested by a growing amount of freedom the more one grows in adulthood. When you’re a kid, you have very few rights, because you’re sentient, but not developed enough to think everything through. The same is true for a zygote, but at a much more advanced level, in which the zygote isn’t even conscious or developed enough to feel, think, or move the same way as a fully grown human. This therefore allows the parent far more power kver…  Read more what they can do to the zygote, which can reach the level of termination to stop the process as the moral value of the zygote is lacking due to a similar lack of any development. It’s the same way as how one would usually attribute more moral value to a fully grown chicken rather than to the eggs which we eat that come from it.