Somehow I don't think you prevent abuse by condoning and encouraging the killing of "inconvenient" children. I believe you would find a greater acceptance of abortion by those who abuse, than among those who don't. Have you never considered that one of the reasons for the horrendous abuse we see is that an entire generation-plus has been raised on the notion that children are nothing but expendable? Read this post. Excerpt:
Why were we so close-minded to the philosophical arguments against abortion? Those slippery slopes quickly became a freefall, leading to abortions of preborn babies for being the wrong gender or having a cleft palate. And the horror of a presidential candidate endorsing partial-birth abortion. And the conclusion of Princeton professor/ bioethicist Peter Singer that parents of disabled infants should be allowed 30 days to decide whether to allow their child to live or die. By characterizing children as burdens rather than blessings, abortion led to the devaluation of every one of them and I believe the murderous mom syndrome, with babies dumped in dumpsters, stuffed in airplane trashcans, toddlers drowned in lakes or bathtubs, kids strangled, smothered, stabbed, shot, beaten, burned to death by their own mothers. How could it happen that we women, the bearers and nurturers of life, could have even for a moment wanted to appropriate for ourselves the right to kill?