Some thoughts:
1)The lefty Jews residing in the USA would probably sacrifice Israel in the name of ‘peace in our time’.
2)The more conservative Jews will fight to the death against the Religion of Peace.
3) Most of Europe loathes the Jews as much as the Muslims
4) The biggest backers of Israel are Christians and many Roman Catholics
5) The left historically is ALWAYS deaf, dumb and blind when it comes to genocide. They blame the violence because of a system(capitalism/Christianity) rather than the seriously evil individual(s). Rousseau was very explicit about this fact.
Bear in mind that 80% of Jews in Israel are "Reformed", i.e., Jewish in ethnicity only.
They may do Passover, etc, as tradition, but faith in God is as foreign to them as it is to the Liberal self-loathing American Jew.