He isn't. In your example *he*, not his parents, renounced his citizenship. Remember part of my statement was:
No, once natural born, no actions taken by ones parents, natural or adoptive, can change that status.
In the real world, his "Indonesia citizenship was aquired by adoption, but IF he was a US citizen, natural born or not, that adoption did not change his citizenship status under US law and the US Constitution. Of course that IF is 900 Billion dollar, question at hand.
BTW, once an adult renounces his/her citizenship, becoming naturalized is very difficult. One might manage it by marrying some Amazon witch with US Citizenship, but it would still be naturalized citizenship.
If you haven’t seen this... It’s a MUST read.
PUTS NBC ISSUE TO BED once & for all!!!!!
http://www.thebirthers.org/misc/logic.htm
MHGinTN posted it