Six Prime Ministers of the United Kingdom have left office in the last ten years (2016-2026). Only one-Rishi Sunak-departed as a result of electoral defeat. The other five-David Cameron, Theresa May, Boris Johnson, Liz Truss, and now Keir Starmer-left office primarily due to internal party pressure, perceived failure to deliver, or loss of parliamentary confidence. Many observers have prematurely interpreted this phenomenon-the "revolving door" at 10 Downing Street-as evidence of institutional decline or systemic instability within British democracy. But does such turnover necessarily produce persistent policy paralysis? Does it automatically indicate weak leadership legitimacy or strategic drift?  While frequent leadership change can certainly create short-term uncertainty, policy discontinuity, and even public fatigue, it would be an overstatement to assume that the United Kingdom is uniquely unstable in this respect. Other advanced parliamentary democracies with similarly episodic leadership turnover-such as Japan, Australia, and Belgium-have not experienced existential threats to democratic continuity or governance itself. Conversely, countries with comparatively stable leadership tenures can still suffer democratic erosion if the institutions responsible for scrutinising executive power weaken over time. Stability in leadership, therefore, is not synonymous with democratic health. An alternative interpretation is that frequent leadership change may reflect a form of internal democratic responsiveness rather than systemic breakdown. In the UK context, it can be seen as an expression of robust parliamentary........

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