Gallstone lied and betrayed his people in hopes of being accepted into a crowd of long-time anti-Israel and anti-Jewish UN community. He was sought for the role of Judas Goat specifically because he was a Jew; and he jumped at the opportunity to curry favor with those whose acceptance he was obsessed. As a result, he has been understandably ostracized by those whom he betrayed; and those who used him no longer want anything to do with him. After all, to them he is and always was just an ugly little Jew; and without a reputation and honor, what else would they want from him.
Yemeni ISIS affiliate claims responsibility for Sanaa mosque bombing (Reuters)
from the article: Report: Zionist group bans Goldstone from grandson's bar mitzvah