Regarding India, Indian govt already has huge tariffs and non tariff barriers on China. They imposed many of those during Galwan valley standoff and later extended them when they are promoting manufacturing or PLI for specific sectors. Indian govt and local Indian manufacturers won't allow middlemen to come and relabel items and eat in to their share of the pie. Sure, with the corrupted Indian bureaucracy some relabling will still go through, but it wont be much. Not sure how US plans to deal with relabling in Cambodia, Mexico etc. though.