Some women have several abortions in their lifetime because the birth control possibilities are so limited, and they are urgently demanding better conditions so that they don't have to resort to abortion just to limit births. So this argument just doesn't hold water. Not only do the poor countries not want population control, not only is the whole over-population argument questionable, but individual women who are forced to control births through abortion are crying for help. I would be surprised if any woman ever had an abortion for the sake of the planet, or because of her concern for over-population. Among the women I have known who had abortions, none of them, at that terrible point in their lives, cared a hoot about over-population.
Women have abortions because they feel cornered, abandoned, hopeless, scared, manipulated.
At least my friends all felt this way. And after the abortion they mourned deeply. They may still be mourning. My personal feeling is that abortion is just as much a feminist issue as it is a pro-life issue. I think women have been sold a very shoddy bill of goods.