Here is what I think of it.
What good come out of abortion?
A couple (or possibly a person) will not have to go through the financial and emotional tolls that a child brings.
They could have ended up being either evil or a horrible person. Negatively impacting everyone around them.
That is pretty much the end of it.
What is the bad?
You are ending something that could have been great before it even started.
You will miss out on every great thing that person would have done.
You will miss out on the joys that person brings. Not only to you, but everyone around them.
That person can no longer affect other people in a positive way.
That person would have missed out all of things life is.
Saying that you support abortion is the same thing as saying you would be OK with somebody killing you before you were born. I mean you as a person. Think of your life. Think of all the things you have done. All the things you have accomplished. All of the people you have affected. All of the things you have experienced. All of the ideas you have had.
Think of all those things. And then honestly, and truly say to yourself, "I would be OK with somebody wiping me from history."
That means everyone would forget who you are. Forget you ever existed. All of the impacts you made would now be removed from the course of time. History would be forever altered. And you would be OK with that. If you think that's OK, then by all means, support abortion all you want.