Those "social democratic" parties in the periphery aren't proof the model works globally. They're rebranded revolutionary movements (MPLA, FRELIMO, ANC) that dropped Marxist-Leninist labels after the Soviet Union collapsed. Without that protection, they faced a stark choice: adopt the language of the Socialist International or risk regime change, sanctions, or outright intervention by the imperial core. The label shift was a survival tactic, not evidence that social democracy can function in a peripheral economy (because it can't).