She isn't just jewish. She belongs to a family which is the center to a lot of stupid conspiracy theories, which could still help to explain why did the Queen of the Sky choose this specific female and turn her into Her Holy Avatar.
Also there's the possibility that due to the huge resources at hand for the Rothschild family, she is either a genetic experiment with some traces of alien DNA, or either the Queen of the Sky was forced to inhabit her body through some dark ritual in which probably blood was spilled and babies were eaten.
However I would recommend you not to speak much about the baby-eating, since its considered racist by most jews.