One thing that is never clearly stated in the abortion controversy, but underlies a lot of the discussion, is what I would call the Priority of Life-Rights Thesis, or PLT. That is, while some rights can be overriden in order to protect other rights, when a life-right is at stake, that life-right always must be defended by the force of law, and all other rights (quality of life rights, privacy rights, etc), have to take a back seat to life rights. To some people, this is so obvious as to not even need argumentation or defense. Hence, once you call something murder, it is somehow logically incoherent to be against making it illegal. By murder, here, I will waive the question of criminal intent, and simply define it as homicide without adequate moral justification.
As a philosopher, I see this as a loose end in the discussion that bothers me. How should it be defended, or should it?