The digital information technology revolution and the emergence of platform societies have transformed international communication from mass communication models to digital paradigms. As the United States’ hegemony in international communication discourse, established during the mass communication era, gradually wanes, a grassroots communication arena based on cultural soft power attraction has taken shape. The recent mass migration of predominantly American TikTok users to Xiaohongshu, a social commerce platform known as “China’s Little Red Book,” under the pressure of TikTok’s “ban or divestment” legislation demonstrates this shift. Xiaohongshu’s rapid ascent to the top of download charts in 87 countries and regions, including the United States and Europe, highlights both the growth of China’s cultural soft power and the significant influence of “everyday life” narratives in this new grassroots communication sphere. This phenomenon reveals how digital platforms can empower alternative communication channels that challenge traditional geopolitical media dominance.