US tariffs under Trump are triggering Thai SME vulnerability, but social media sentiment reveals a deeper structural problem: 40% of criticism targets cheap Chinese imports and uncompetitive Thai businesses rather than US policy. Thai exports face margin compression, logistics costs spike, and domestic SMEs lose ground to Chinese products. The research (July 2025–June 2026 social listening) shows Thais question why growth lags Vietnam—exposing Thailand's over-reliance on exports and tourism without building sustainable domestic capacity.