只许自己大补不许他人进补，美国身虚又心虚

Group 1 - The U.S. government frequently uses tariffs as a tool to combat what it perceives as "unfair competition" from foreign subsidies, leading to a contradictory situation [1][2] - The legitimacy of the U.S. government's stance on subsidies is questionable, as it has provided significant subsidies to its own industries, totaling at least $68 billion from 2000 to 2015, and has continued to do so under both Democratic and Republican administrations [3][4] - Recent U.S. policies aimed at boosting domestic manufacturing have not met expectations, with companies citing worsening market conditions and policy uncertainty as reasons for delaying investment plans [4][5] Group 2 - The U.S. manufacturing sector faces significant challenges, including a shortage of skilled labor and high operational costs, which are major constraints on its development [5][6] - In contrast, China's manufacturing sector has shown strong performance and export capabilities, adhering to WTO rules regarding subsidies, and its trade surplus is stable across various industries [6][7] - The U.S. government's continued focus on "anti-subsidy" measures may ultimately harm its own interests, as it seeks to blame external factors for its manufacturing struggles [7]