Whatever you think about Frick and the Homestead situation, it was nothing compared to Rockefeller and the Ludlow situation, which was very similar, though on a much larger scale. Both were "addressed" by Berkman as would be bungling assassin.

Berkman ties into everything, but is not himself a major player (as far as I can tell), except as a helper and propagandist. Berkman and his life partner Emma Goldman were BFFs (and likely lovers) with Margaret Sanger. They were the anarcho-Communists who were the pro Bolshevik revolution propagandists in the United States (as was Sanger). Look up the IWW (wobblies). Everyone involved in that "capitalist opposition movement" had direct ties to Rockefeller or the Bolshevik revolution, or both. The IWW, which organized protests "against the capitalists" and "for the workers" was a master class in how to create a agency of Controlled Opposition.

You can read my report here which shows how Rockefeller created the single corporation that exists (there can be only one, a true monopoly). The next section, hopefully coming out soon, will have a whole lot of stuff on Sanger and Berkman, and the co-creation of Israel and the USSR, both of which were primary intents (along with the United Nations) of the world wars.