Its not quite the same. There are multiple Republicans from whom to choose, whereas there is only one Israel. Jews have prayed for close to 2,000 years for Israel to be re-established and for the Temple to be rebuilt - but I don’t notice too many Republicans with a religious interest in a particular candidate...in every single election.
To me (as a somewhat observant Jew) a JINO is someone who is Jewish by virtue of having a Jewish mother, but who neither believes in nor practices his or her faith (or precious little of it, anyway). Such a person might, for example, circumcize their son or hold a(n imitation) Passover Sedar, but doesn’t give a damn about the viability of Israel of his/her 6.5 million Jewish brethren that live there. To most JINOs, Judaism is an embarrassment. These people are almost universally liberal Democrats but, of course, there are many exceptions to this very broad observation.
I don't think it reasonable expect Obama to get 78% of the Jewish vote this time. If it is close to 50/50 that would shock the Democrat party.