Actually I've seen surveys done of young women; especially college aged women which show that they DO believe that the child is better off dead. They don't want the baby, but they don't like the idea of NOT knowing what happened to the baby, if it were adopted out.
Not wanting anyone to know they're pregnant is likely a large part of it, too, I guess they don't want to admit THAT. It's just twisted.
The guards at Auschwitz & Buchenwald also suffered somewhat from this dilemma... but alas... there were no funds available for counseling.
Human butchery has indeed evolved.