The author does not understand the right to life or those who defend it.
Each of us has the right not to be killed by the arbitrary "choice" of another. The right to life justifies acting in self defense and calling on the government (which is a collection of "us") to protect us when we are in immediate and clear danger from others who would kill us. In every other case of self defense, the law requires at least some evidence to prove endangerment that will stand up in court. Those of us who believe that a woman has the right to protect her life when she is at risk of dying due to her pregnancy do not question or negotiate on the child's right to life. Rights are not negotiable, they can only be infringed or enforced. While most of us agree that the woman has the right to remove the child from her body if there is no other way to save her life, we would prefer live birth when it will allow the woman to protect her life, while the pro-abortion crowd seems to accept nothing less than the right to a dead child.
The pro-human rights advocates who accept abortion in the case of rape and incest do so either out of tradition or see the pregnancy as a continuing assault on the woman and the abortion as self defense. However, many of us do not accept abortion in this case, since the woman is not actually in danger of losing her life and see no reason to punish the child by the death penalty for his or her father's infringement of his or her mother's right to liberty.
While pregnancy is definitely a special case that is hardly analogous to any other situation, it is a fact that parents are required by law to sacrifice their liberty and property for the benefit of their children, at the risk of being charged with negligence if they don't. There's no justification for allowing parents to "choose" to kill a child - either before or after birth.
The well established reasoning regarding self defense can accurately be applied to the issues of abortion and 'rights', so long as the applier doesn't commit the fallacy this article author makes, namely an either or ... the right to end a pregnancy for reasons of self-defense ought not be misconstrued to create a right to a death in the family, a death of the newest, most innocent family member. If that reasonable perspective is applied, then terminating a pregnancy in cases of rape, incest, and imminent threat to the mother's survival doesn't create an automatic cancellation of the right to life for the little one on life support ... the physician already acknowledges she is treating two individual alive humans, not just the one giving life support.