American stereotypes and most of those are geared towards elder pop as the younger are just too homogenized culturally as a broadly Jewish and largely secular. The closest they get to thjese connections are stereotypes from entertainment.
But the politics among the diaspora is feigning unity... so, there is not much public room to discuss the divides between the various Jews even if it's an open secret.
Like most looking down on the Russian/ex-soviet Jews because they're often the most disconnected, (culturally, socially, religiously) but they have a distinct flavor.
We get into complications of some of the other Jews, like Mizrahi and more exotic flavors, because many of us throw are lot in with either Sephardi or Ashkenzai. . . usually whatever majority is larger in the area we're in. There are not as many options for the rest of us. Which leads to the most infighting because diasporic Jews take for granted their upbringing and tend to assume that everyone else grew up the same way... and the collective need for protection leads to the tribalistic mentality and suspicion of others that don't fall neatly into prescribed conventions.
Ashkenzai, especially the yiddists, are viewed as nebbish.. one part the reflections on the more orthodox Jewry, heredi in particular, and the other not that far off from gays because of their long associations with Broadway and a wide variety of entertainment media. .. we can go back centuries further with the pros and cons of being forced into money lending roles. . . but as related to this, the stereotypes of accountants.
Sephardi is harder for people to grasp because fewer Americans have heard the term, and if they have, they assume most are conversos... to which by American perceptions, they usually paint them broadly with stereotypes of fiery latin temperaments.
Mizrahi (also unhelped by a flamboyant designer that has that name) -- it's akin to other peoples from the MENA region. There are a lot of homoscial touching among men and loud parties that go all night long... so, they have a tendency to come off like gym bros and circuit queens... getting associated with the guido like stereotypes of italians, greeks, other people from the mediterranean.
and other groups, the associations are the same...
but in the U.S. if someone says Jew, then their first thought tends to go towards Ashkenzai.. to the Woody Allen and Mel Brooks types.
Or even the Benny Youngman styled Eddie Murphy.
