Should more babies be given up to the state to be distributed to people who have earned the job title of "parent"? The amount of kids living in poverty, and/or having incompetent parents is not a trivial fraction. Should it be the duty of a civilization to engineer generations; to save these children? At what point does "a child" become the responsibility/property of everyone, and not just the responsibility/property of the biological parents?
These are the hard questions that no one wants to think about.