I dont believe anyone who is still sane would say "Abortion is a great invention".
I do believe that there are some situations where it is a reasonable answer to a dilema, when it is in the best interest of the child.
I dont give a d**n about how the mother is going to be affected, it's her fault for f**king around anyway. But if a child is going to suffer because of the family they are born into, it is better fot them not be born.
You may be thinking "they could put the child up for adoption" youre right. But how many unprepared parents do that? Not many. It would be too much to try and fix the system to save suffering children, so abortion can be a reasonable option to keep children from suffering.