26.8. One-child policy (一孩政策, 1979–2015)

http://ftp.iza.org/dp3214.pdf suggests that a 1% increase in the male/female sex ratio raised violent and property crime rates by some 3%, mentioned with percentage error at https://youtu.be/DytBlcScGNk?t=1304

Scarfolk children the cause of crime
Figure 272. "Children: the cause of crime" spoof poster by Scarfolk Council (2017). Applies perfectly to Xinjiang (新疆) forced abortion accusations. The One-child policy (一孩政策, 1979–2015) also comes to mind. Source.