It all comes down to this: when does human life begin? All humans have a right to life. I believe the scientific answer coincides with the theological answer - at conception - when the sperm and egg meet there is new life, and this little baby has the same DNA it will always have and is a separate being from the mother.
To say that one becomes a human only once he has been physically separated from the mother is an arbitrary assertion in my opinion.
As for Strategist's quote, I tend to think that illegalizing abortion will actually aid the war on poverty. When our society kills its own preborn children, how is it going to feed and clothe the other children? When we acknowledge the inherent dignity of every human being it is then that we will have the vision to see the dignity in the poor and will then come to their aid. Until then, let us do what we can do.
As a side note, there is an interesting effect between government law and perceived morality. Back in the 50s a priest was visiting a prison and was out in the prison yard where the inmates were lifting weights, playing basketball, etc. He noticed sitting at a table across the yard were four men playing bridge. The priest inquired to the warden who they were and the warden responded, "You don't won't to go over there. Those men are abortionists."
What I'm saying is that despite most people believing abortion to be immoral a generation or two ago, its legalization influences the average person into thinking it is a moral action. When Roe v. Wade is eventually overturned, the following generations will look back on it with disgust, much the same way we look back on slavery today. Just my prediction.