I didn't know about or hadn't let my mind run to the conclusion that there would be rape or child dolls. That's a bit disturbing.
As to the rest. Couple it with teledildonics, VR, etc.
All I can say is it should reduce unwanted pregnancies and the population growth may falter. I wrote about it from the VR, and fact people date phone apps in Japan, etc. I was writing about the idea of how it might impact population growth.
I hadn't really delved into this darker side that you covered.
A society where individuals are balanced and in their hearts is one that will not have an overpopulation problem. That is where we need to head, not trying to deal with symptoms, while ignoring the causes.