citizenship, not renounced, Indonesian citizenship went with adoption, and he had to be an indoesian citizen to attend school in Indonesia and had to be Muslin too.
I imagine at a young age your religion is what your parents’ religion is. If he was born in Hawaii, he is an American. Whether or not he is a NBC is a question for the courts, which of course will never take up the issue. He could have been born on Mars, though, and it would not make any difference. No one would do anything about it. No one!
Indonesian citizenship law does not control American citizenship law. We bow to none on that anymore. Even the deal with Ireland and Italy no longer exists.