Modernity is one of the most contentious paradigms in intellectual history, evolving across various ages. For instance, Romanization represented modernity in its era, contrasting Greek and Celtic traditions. The most common contemporary notion, however, is post-structuralist modernity, which questions the structural foundations of other identities, particularly through the lens of (post-)colonialism. This dialectic transcends the Arab-Islamic context, shaping Japan’s transformation since the Meiji era and Kyoto Symposia(s) of 1933, and reflecting in the post-WWII landscape (Harootunian, 2000). The (post)structuralist colonial narrative during the Cold War further sought to suppress Eastern and indigenous cultures (Alnasir, 2023a). This paper reexamines the East-West dichotomy as a North-South clash of values, with Western-Northern ideals confronting Eastern-Southern resistance. Drawing on psycho-social and inter-group dynamics (Heine et al., 1999), the paper highlights the deep cognitive dissonance between universal Northern values and local Southern ethical sovereignty, urging interdisciplinary academic inquiry into these tensions as an updated proposal for the theory of Colonial Psychology.