English Summary
The analysis finds that while Americans maintain broad support for U.S. global leadership, this backing is conditional: they require foreign engagement to provide clear, tangible benefits to their local economies and communities. Key evidence suggests a preference for being 'engaged but not entangled,' favoring predictable trade policies and alliances over unilateral actions or deep military commitments. For policy, the implication is that successful U.S. strategy must pivot away from abstract exceptionalism toward a disciplined approach that explicitly connects global values (like democracy) to domestic prosperity and stability.
中文摘要
分析指出，儘管美國民眾對美國全球領導地位仍保持廣泛支持，但這種支持是有條件的：他們要求外國參與能為其本土經濟和社區帶來清晰、具體的利益。關鍵證據顯示，民意傾向於「參與但不過度捲入」（engaged but not entangled），偏好可預測的貿易政策和聯盟關係，而非單邊行動或深層次的軍事承諾。因此，政策上的啟示是，美國成功的戰略必須從抽象的例外主義思維轉向一種紀律化的方法論，明確將全球價值（如民主）與國內繁榮和穩定建立起聯繫。
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