A legal advisor that only purpose is to sell a product that is American citizenship by birth. No, article 9 has made it clear that it is illegal to have dual citizenship. It doesn't matter how some lawyers tried to interpret it one way or other.
I have answered article 9 which involves "free will to acquire". A new born baby could not possiblely have "free will" and capable to "acquire". Article 9 only applies to legally responsible adult, don't you agree?
A legal advisor only get his or her money if what he/she said works for their clients. There would not have been so many "American babies" if the advise was false and get the parents in troubles.
If what you say is true, then why so many dual citizens Chinese went into trouble by entering in the third countries to avoid the custom agency to confiscate their Chinese passports. If what you says is true, then why these interviews all say they have to make the decision after 18 years old. Article 9 is very clear you can't have dual citizenship.
Those troubled Chinese are adult. Presenting their foreign passports to Chinese agencies have the effect that they have willing acquired foreign citizenship without officially renouncing Chinese citizenship. That act is a breach of Chinese law, therefor their troubles.
Article 9 is clear that Chinese can't have dual citizenship when the person willingly acquires foreign citizenship.
Article 3, "China does not acknowledge Chinese citizen having dual citizenship". Legally speaking those people are
not dual citizens in China's standing point. They were Chinese citizens before legally renounce their Chinese citizenship, immediately from that point of time they are foreign citizens.