The vast majority of liberals are non-Scandinavians so is it wrong to ponder why most Scandinavians in Minnesota vote for 'rats?
The vast majority of liberals are white so is it wrong to ponder why most blacks vote for Democrats? Is it to "blame" blacks to question why they mostly vote for 'rats?
Why so much angst about a group which makes up around 2% of the population?
There is nothing wrong with speculation. But a distinction should be made between "demonstrable fact" and "opinion" or "guesses".
In any case, you missed my point, which was that, numerically, Jews form a very small part of the electorate. Far more non-Jews vote for Democrats than do Jews. The 50% of Catholics who vote Democrat provide enormously more votes than the 70-80% of Jews who do.