There is a documentary out that is supported with facts, that when a civilization reaches less than 1.9 children per family, that that civilization will not sustain itself, and the documentary has nothing to do with abortion. The United States is at the present at less than 1.6 children per family, and is indeed dying as a civilizational culture. The Islamic religion birth rate is some where in the neighborhood of 9. something or the other, and this is why it is able to expand.
The reason abortion is up, is because couples are so engrossed with ME, that they don't want any outside interference from unwanted children. It is the low birth rate that will end our culture, along with decadence, and self indulgence. Abortion is just another symptom.