The fact that American Jews voted 78 percent for Obama in 2008 and 69 percent for Obama in 2012 prompted Ben Shapiro to ask the question, "Why Do Jews Vote Leftist?" His response:
The answer is simple: the vast majority of Jews don’t care about Judaism or Israel. They care about secular leftism, which is their religion. [my bolding]
The polls show this. American Jews are the least religious religious group in America. Only 41 percent say that their religion is important to them in their daily life, according to a December 2012 Gallup poll; only 34 percent said they attend religious services at least monthly, compared with 65 percent who said they attended religious services seldom or never. 22 percent of Jews say they have no religion. According to an October 2013 Pew poll, just 38 percent of Jews say their Jewish identity has anything to do with Jewish religion at all. Just 10 percent of Jews identify as Orthodox – people who consider themselves fulfilling the commandments of the Torah.
As for Israel, just 30 percent of Jews say they are very attached to Israel. Only 43 percent of Jews have ever been to Israel. And here’s an amazing statistic: just 40 percent of Jews believe God gave Israel to the Jewish people. 27 percent say God didn’t, another 5 percent said they don’t know, and 28 percent said they didn’t believe in God at all.
Shapiro goes on: