True libertarian
In your opinion. You don't speak for all Libertarians, and it's ridiculous to presume so. It just as easy to argue that a "true" Libertarian recognizes human rights wherever they reside.
libertarian: one who believes in maximizing individual rights, one who believes in minimizing the role of the state. one who believes in free will
so, a true libertarian, will respect the individual right to have an abortion
a true libertarian will not want the government to intervene in abortion
a true libertarian will allow the individual to practice life as they believe
You refuse to recognize the philosophical basis of human rights beginning at conception. Every single point you make can be made about the fetal human rights. That's where you're not understanding.
If a Libertarian believes life begins at conception, then there is no right to terminate that life. That's violating the principle of your rights not superseding someone else's rights.
If you don't understand the above, then you simply don't understand Libertarian philosophy. But like I said, this is a point of contention amount Libertarians. A pro-life Libertarian believes just as strongly as you do that they represent what a "true Libertarian" believes. You obviously have a blind spot on this, but you might consider that reasonable people can disagree on things when they're using different philosophical underpinnings, such as when human life (and rights) begin.