Earlier quoted context omitted.
The hateful milieu arises from the mixing of four ingredients: One part legitimate grievance. For instance, black on white crime is a huge problem that is not talked about and not addressed in mainstream discourse. In Philadelphia, a close friend of mine got mugged at gunpoint outside of her apartment. Two blocks away, recently, a twenty-something woman who could have been any of my friends, was mugged, shot, and kil…
Your "legitimate grievance" adds nothing to explain the main hatred of the site, which according to the article, is anti-semitism. It's hard to believe that "Jews run Hollywood" is enough to explain that. I guess you need to add the old myth that Jews run the economy or some such. But then, that doesn't work well with the article's claim that the hatred is not driven by economic hardship.
Um, well you can believe what Seth (the article's author) says, or, um, you can make a very quick trip to the Stormfront home page. Seems to me that maybe ~20% of the thread subjects relate to Jews. The other big two topics are black-on-white violence and immigration. It is in those two topics where I think there is a considerable amount of legitimate grievance.
"It's hard to believe that "Jews run Hollywood" is enough to explain that."
No it's not enough, that was just one of many examples of pattern matching.