Gottfried Feder
Gottfried Feder is the answer to the question "what happens when you attack finance capital without class analysis?" Answer: you get Nazism.
Feder was the engineer-economist whose anti-usury lecture converted Hitler to the party in 1919 — Manifesto for the Abolition of Interest Slavery, the 25-point program's "socialist" planks, the whole bit. He correctly identified finance parasitism and then attributed it to "Jewish capital," turning a critique of usury into the vehicle for genocide. The Nazi state kept private property, served heavy industry, and murdered the scapegoats — Feder himself was marginalized by 1934 once Schacht's orthodox financing of rearmament made him useless.
Why he matters here
Every patriotic-socialist current must answer Feder's question — how do you attack finance capital? — without repeating his answer. The Infrared line: finance is a class relation (Wall Street, the City, monopoly rent), not an ethnicity; the answer is expropriation and planning (Capitalist Socialism), and the coalition is multiethnic by composition, not despite it (Left-Conservatism, Strasserism).