There is are terms for that, Philo-Semitism, Righteous Gentiles, or Christian Hebraist
I believe Sarah is in touch with her Inner Hebrew (I mean Sarah DOES mean "Princess" in Hebrew, which she lives up to that meaning) and may be an ALL of the above mentioned terms.
I don't understand why Jews (or Catholics for that matter) support Democrats, no other political group in this country could be more opposed to their values.
Or Blacks for that matter. Democrats, the party of the KKK. All three of these groups are enemies of the KKK.