These threads will always be the same thing: cries of hypocrisy or moral inconsistency used as weak ballasts to prop up an indefensible position on abortion. No one here ever makes the argument that abortion is good, just that the people who think it is bad are themselves bad.
It's tiresome and the mods should really do more to keep this in the megathread.
I'll make that argument for you, then.
Abortion is good because it prevents children from being born into abject poverty and living a miserable existence.
Abortion is good because some people simply cannot properly take care of children.
Abortion is good because it can save the life of the mother, in certain situations.
Abortion is good because God literally punished women by forcing them to have miscarriages, per a story straight from the Bible. therefore, God approves.