For all of those who think Bernie's message will resonate in Brooklyn: how many secular Jews live in the neighborhoods that they grew up in? Not all that many and most have achieved rapid social mobility, so if they live in Brooklyn, they live in Park Slope or whatever and will be influenced by the Very Serious People in the New Yorker and the Times.
There are very few of the old-time secular Jews left in Brooklyn. When Brooklyn's Jewish population peaked at around 900,000 in the 1950s, it was a
very different Jewish population than is there today. Orthodox Jews and Jews from the FSU make up the bulk of Brooklyn's Jewish population.
In fact it's unlikely the "Ellis Island story" applies to most Brooklyn Jews.