“Being a minor he was not able to surrender his citizenship.”
Not true. Anyone of any age can move out of the country and renounce their citizenship. The Obama Administration instituted a policy directive in 2009 which said parents could not renounce the citizenship of their children. Consequently, Obots and ConcernedFreepers have run with the 2009 policy as if it has been US policy since the founding of the country.
Since Obama will not accept a parent as an adult who speaks for the child who has moved out of the country and wants to renounce, another adult must be named. The parent must sign an affidavit of power of attorney naming another adult and relinquishing parental rights with respect to the citizenship rights of the child. The Power of Attorney could be issued to a lawyer, priest, tribal elder, neighborhood leader, or any other person willing to negotiate with the U.S. State Department on behalf of the minor who wishes to renounce their US Citizenship.
Mental incompetents, people who don’t speak or read English, dead people, minors and anyone else can move out of the country and renounce their US citizenship. Some applicants must have an individual named on a Power of Attorney to speak on behalf of that individual.
At their age of majority they must choose one or the other. Generally this is done by inaction to the country they decide to renounce. They quit using one passport or they register to vote in one country or the other.
I know that now days it is fashionable to give minors rights that they are not entitled to but that was not always the case.