Critics equated left-wing ideas with the threat that destroyed Weimar

Evidence

Sontheimer, who came to prominence during the 1960s with his study of Anti-Democratic Thought in the Weimar Republic, declared during the 1970s that left-wing revolutionary theories were the breeding-ground for terrorism, and considered the Federal Republic to be threatened by left-wing ideas in precisely the same way that the Weimar Republic had been threatened by anti-democratic right-wing ideas. — Rolf Wiggershaus, The Frankfurt School, 692

Categorization

• XREF: Recalls the earlier Weimar-era sociology-of-knowledge material on how the political right reworked anti-democratic ideas. — connects to: Weimar-era liberal opinion tolerated Marxism as theory while condemning its practice — Rolf Wiggershaus, The Frankfurt School: Its History,…, 124; Weimar democracy fell because its constitution aided reactionaries — Rolf Wiggershaus, The Frankfurt School: Its History,…, 929; Ordoliberals blamed mass society and proletarianization for the Weimar Republic’s collapse — Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin: The Making…, 508 (+1 more)
• yield-rescued: below the book’s yield-target cutoff, included anyway for connecting to: Weimar-era liberal opinion tolerated Marxism as theory while condemning its practice — Rolf Wiggershaus, The Frankfurt School: Its History,…, 124; Weimar democracy fell because its constitution aided reactionaries — Rolf Wiggershaus, The Frankfurt School: Its History,…, 929; Ordoliberals blamed mass society and proletarianization for the Weimar Republic’s collapse — Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin: The Making…, 508 (+1 more)

Broader Connections

• Supposed left-wing authoritarians in past movements were probably right-wing wild cards #complicates (0.75)
• Weimar democracy fell because its constitution aided reactionaries #complicates (0.74) — Rolf Wiggershaus, The Frankfurt School, 929