Between the massive imbalance in the number of boys and gilrs born in China/India, the ruling in sweeden that gender-based abortion was legal, and the growing ability for people to identify elements about a child in the womb is (probably) changing how people see abortion ... These abortions are not being carried out by people who can't afford to have a child, they are being carried out by people who want to ensure that they get the perfect baby and are leaving nothing to chance.
Imagine (for a moment) how the strongest supporters of abortion rights would react if scientists discover a way to determing whether a child is gay while they are in the womb (or potentially that the child has a higher probability of being gay), and tolerant middle and upper class women choose to go and have the child aborted because they just don't want to have a gay child.
The first wave of eugenics and genetic engineering was the use of genocide to kill off the undesireable people in society, it is quite possible that the second wave of eugenics and genetic engineering will be the use of abortion to prevent the birth of the undesireable people in society, and the final wave will be the manipulation of the genetic code of man to eliminate the undesireable traits from people in society.
