This paper challenges military-centered assessments of a possible People's Republic of China (PRC) operation against Taiwan by 2027, arguing that Beijing's calculations may depend not only on military readiness and economic costs but also on diplomatic recognition, international legitimacy, and political identity. It advances a conditional framework integrating ontological security theory, the Chinese sociological concept of mianzi (face), and recognition politics. The paper proposes that Taiwan's declining diplomatic recognition could strengthen Beijing's sovereignty narrative, create a perceived loss of face for Taiwan's governing authorities, and alter the political conditions under which Beijing considers coercive or military unification. Drawing on official PRC statements, U.S. security assessments, and international relations scholarship, the analysis develops three propositions concerning recognition, status vulnerability, and coercive decision-making. It argues that complete diplomatic isolation could represent a significant political threshold without necessarily eliminating Taiwan's international relationships or legitimizing the use of force. The paper contributes to cross-strait security studies by identifying diplomatic recognition as a potentially important condition that shapes Beijing's assessment of the political feasibility and costs of unification, beyond conventional materialist explanations.