There have long been accusations of health officials using anti fertility vaccines in tetanus vax campaigns in Manila, Mexico City and more recently Kenya. Catholic bishops called this out when they noticed high rates of miscarriage and infertility in young women. It's not hard to imagine a world where everyone is infertile and you need the right social credit score to get fertility treatments from the communist govt healthcare system. Leftists would probably openly champion this today. https://m.scirp.org/papers/81838