美国威胁加不要与中国签协议，孙玉良：勇敢的卡尼再不会受恐吓了

Group 1 - The core issue revolves around Trump's use of tariffs as a diplomatic tool, targeting Canada instead of China, and his threats against Canadian trade agreements with China [1][3] - Canadian Prime Minister Carney's statements about China being a reliable partner have provoked a strong reaction from Trump, who has threatened to impose 100% punitive tariffs on Canadian goods [1][3] - Carney's response emphasizes Canada's right to choose its trade partners based on national interests rather than political pressure from the U.S., marking a shift in Canada's approach to U.S. threats [3][6] Group 2 - The article highlights the absurdity of the U.S. advocating for free trade while simultaneously attempting to monopolize global choices through tariffs and sanctions [3][5] - The changing dynamics of global trade are illustrated by Canada's willingness to seek cooperation with China, which is seen as a rational economic choice rather than a political alignment [1][6] - The narrative suggests that the traditional U.S. methods of maintaining dominance, such as military threats and financial sanctions, are losing effectiveness as countries like Canada begin to assert their independence [5][8]