@Walter Hinteler,
And, how many Americans resent the success of Jews in America? Lots!
Like I said, very few of the moderately educated Gentiles have any Jewish friends. Inter-faith friendships usually only exist between the higher educated. When there is a Jew in a working class situation, and he/she has a Gentile friend, it is often, in my opinion, a friendship that doesn't extend beyond only a few individuals. Most Gentiles, in my opinion, consider Jews "different," and have no desire to explore a friendship that may have some potential obstacles, not to mention the potential for alienating other Gentiles.
Also, Jews in America, due to America's freedoms and opportunities, have adopted an upwardly mobile vision of their family's life. So children are expected to go to college, or some type of vocational training. And, only amongst the upwardly mobile, in my opinion, do Jews not pose a perceived threat, eliciting resentment.
In the way of analogy, did those ex-WWI soldiers, that were attracted to the Nazi party, in the Weimar Republic, have many Jewish friends? See my point? There is a large underclass, or marginal class, that cannot relate postively, let alone benignly, to Jews and their industrious habits.