Yonai's longer-term concern was the continuity of the state and the emperor's position, while other leaders concentrated on surviving the immediate crisis. A one-party state made the whole political order vulnerable when that party lost legitimacy. A system with several parties committed to the constitution could instead let voters change governments without overthrowing the regime. In this reading, ordinary competition discourages revolution by giving dissatisfied groups a path to power through gradual political change.
Notable Point · 1:20:30-1:23:24
A multi-party route to preserving the Japanese state
Yonai might prefer multiple parties because managed political turnover could reduce incentives for revolution.