Obviously, this is just a bad joke. The ignorant (insert insulting term here) is trying to insult Mr. Kushner. One can tell from the clip that it was not an attempt at humor but for a political pointA bar mitzvah can't be revoked.
Bar Mitzvah, Bat Mitzvah and Confirmation
A Jewish boy automatically becomes a bar mitzvah upon reaching the age of 13 years, and a girl upon reaching the age of 12 years. No ceremony is needed to confer these rights and obligations. The popular bar mitzvah ceremony is not required, and does not fulfill any commandment. It is certainly not, as one episode of the Simpsons would have you believe, necessary to have a bar mitzvah in order to be considered a Jew! The bar or bat mitzvah is a relatively modern innovation, not mentioned in the Talmud, and the elaborate ceremonies and receptions that are commonplace today were unheard of as recently as a century ago.