This is the same legal position as that found in the famous Roe v Wade decision handed down by the US Supreme Court in 1973. No one has been able to overturn that decision because they do not understand the law behind it.
In brief, a “person” is a persona, from the Latin for “mask”. This persona, which you will use for all interactions with the Govt, is created when the Birth of the baby is registered. The Birth Certificate has two crucial bits of information which every Govt agency must obtain before it can take action.
These are: Name and Date of Birth. Before a baby is born, neither one of these exist, therefore the persona, or “person” does not exist. Thus, for purposes such as insurance compensation, it cannot apply if the statute awarding it applies only to persons.
In general, all modern statutes, save those punishing murder, apply only to persons. You can still go to jail for murdering an unborn baby. But this does not get used against abortion. Only on occasion when someone’s violent act causes a miscarriage resulting in the death of the baby.