Actually, case law is starting to turn towards the support of people who, because of their religion, do not seek modern medical care for the children in their care.
However, abortion when the mother's life is not in any reasonable danger is silly. Lots of people with epilepsy bear children, it has been stated as the mother's desire, and the guardians have stated it. People do not take guardianship when they do not care and the fact that they even wanted to bring her home despite the obviously hard work it would take is even more evidence that they have her and baby's best interests in mind.
But...why should they, as her parents and legal guardians, be questioned in the first place? There should be a natural assumption that a parent or legal caregiver already has the best in mind for their child unless they have been found guilty of criminal activities involving children or dependent adults in the past.
It should be a fundamental right. Wait, it IS, isn't it? It's just being taken away. Quickly. You see it everywhere. Guilty until proven innocent is how it seems to work when it comes to accusations of neglect and such against those caring for dependent persons. That is very wrong and even worse, in a court where you're talking about dependency, it's rare for the caregiver to be able to defend themselves until 30 days AFTER the first court date. That's plenty of time to have the dependent removed and have the abortion performed, should the court grant a motion to have the dependent in state custody while this is sorted.