One interesting question to try to get at the answer to the question posed here is to separate the broad category Jews into religious Jews and secular Jews.
It could be that secular Jews are largely non-believers and non-believers everywhere and historically have flocked to the left for fairly obvious reasons.
I’d even venture to say that the proportion of non-believers may be (paradoxically?) higher among Jews than among gentiles. If so, that would create a bias towards believing that Jews are of the left, when perhaps the reality is that non-believers (from any group) are of the left.
Secular Jews from the former Soviet Union voted majority against Obama. They had enough of socialism back in the USSR.
In Israel political landscape is wild. There is religious right, there is religious left, there is secular left, there is secular right.