Podhoretz - Why are Jews Liberal?
It won’t play well on the Upper West Side, but it’s the truth:
The upshot is that in virtually every instance of a clash between Jewish law and contemporary liberalism, it is the liberal creed that prevails for most American Jews. Which is to say that for them, liberalism has become more than a political outlook. It has for all practical purposes superseded Judaism and become a religion in its own right. And to the dogmas and commandments of this religion they give the kind of steadfast devotion their forefathers gave to the religion of the Hebrew Bible. For many, moving to the right is invested with much the same horror their forefathers felt about conversion to Christianity.
All this applies most fully to Jews who are Jewish only in an ethnic sense. Indeed, many such secular Jews, when asked how they would define “a good Jew,” reply that it is equivalent to being a good liberal.