“What method do the Americans use to wage economic warfare against us”

For background, the French military industrial complex is in serious trouble. For example, the US had to step in to take over supplying submarines to Australia when France proved unable to complete the contract: https://www.cnbc.com/2022/06/11/australia-reaches-settlement...

Most charitably, France has serious problems they need to correct if they expect to participate in the defense industry. Less charitably, France has thrown away their commitment to their NATO and Western allies and regime change will be needed before they can expect even a minimal level of credibility.