Again you are confusing the ability to provide food, water and shelter with viability.
No, I am saying "viability" is an ambiguous term that means nothing. We apply it to the fetus in the context of what the fetus can or can't do outside it's appropriate environment. That standard isn't applied to human life elsewhere, only when it's in the womb. You are arguing that since it can't sustain itself outside the womb it's not 'viable' human life, but no human life can sustain itself outside the environment it is intended to survive in. The fetus certainly can sustain itself inside the womb attached to the uterus, if it couldn't we wouldn't need to abort anything.
Like I said "viability" is not ambiguous.......
The court also recognized that the state has an “important and legitimate interest” in protecting the health of the mother and even “the potentiality of human life” inside her. The court then asked: When does the state’s legitimate concern for maternal and fetal protection rise to the level of compelling interest? To answer this question, Blackmun created a three-tiered legal framework, based on the nine-month period of pregnancy, which gave the state greater interest and regulatory latitude in each successive tier.
The first tier in Blackmun’s framework encompassed the first trimester of pregnancy. Given that during these first three months the risks associated with abortion are actually lower than those associated with childbirth, the state has no real interest in limiting the procedure in order to protect a woman’s health, Blackmun argued. During this period, the state can only impose basic health safeguards – such as requiring that the procedure be performed by a qualified health professional – and can in no way limit access to abortion.
The second tier of Blackmun’s framework encompassed the period from the end of the first trimester to the point of fetal viability – the point at which a fetus can survive outside the womb, either through natural or artificial means, which typically takes place between about 24 and 28 weeks into a pregnancy. At this point, Blackmun determined, the state has an interest in protecting maternal health and can regulate abortion only to protect the health of the mother. In other words, regulations have to be directed toward ensuring maternal health and cannot be aimed at protecting a fetus or limiting access to abortion services. Thus, a state law requiring a doctor to describe to a woman seeking an abortion the risks associated with the procedure before receiving her informed consent would be constitutional – as long as the requirement aimed to protect maternal health and was not created to dissuade a woman from terminating her pregnancy.
A History of Key Abortion Rulings of the U.S. Supreme Court Pew Research Center s Religion Public Life Project