It's funny how you're worried about fertility rates while earth's population is 7.5 billion people. Maybe all innovations and "negative" changes are just a natural way to protect the Earth from overpopulation.
What bothers me is the fact that the educated and the intelligent are not having children, while the least educated and the retards are having dozens. For example, people with the highest IQ can be found in East Asia, and they have the lowest fertility rates. On the other hand, Sub Saharan Africans, who normally have an IQ of less than 70 are having the highest fertility rates.
It's awful. Then the crowd of illiterate hungry people who have more animal instincts than human. They do not know how to solve their problems and start wars. I think that's the reason Africa has so many wars. Not very far from them are the poor countries of the middle East.