Just to make it clear, these types of enforcement are not norms. The law never suggested such enforcement. The law is that you get a financial fine if you have more than one child, that's it. It's actually against the law to force any kind of abortion. That being said, in some rural area, some officials maybe so greedy to make achievement for their "career" that they "enforce" this policy by breaking the law.

Some of the examples you listed have only one report. And it's policy that lasted almost 40 years in a country with a billion people.