All it shows is that foreign policy isn’t the critical factor in Jewish voting... or for anyone’s voting, for that matter.
I mean, would you vote for a pro-Israel, pro-homosexual agenda, pro-abortion, high-tax, anti-Constitution politician over an anti-Israel, anti-homosexual agenda, anti-abortion, low-tax, pro-Constitution candidate?
In my life time the Korean War, the Cold War, Vietnam, the Iranian hostage crisis, Saddam's invasion of Kuwait, and 9-11 have all had decisive impacts on USA elections.
As to Jewish voting, the “NeoConservative” movement of the 1970’s was dominated by liberal Jewish intellectuals who rejected the pacifism and the Cold War appeasement of the Democratic Party.
Finally, except for Pat Buchanan, I can't think of any Conservative leader who is not assertively pro-Israel.
Philosophically, American Conservatism and vigorous support for Israel are inseparable.
Philosophically, the American Left and vigorous support for Palestinians are inseparable.
I can't imagine I will ever have to make a political choice between one side or the other.