This has nothing to do with tariffs, it's entirely to do with him being a fucking moron who doesn't understand the reason why some countries have trade deficits with America and sees those as a tariff on America. He is a complete idiot who believes no country in the world is allowed a trade deficit with America.
For Christ sake he is attacking Canada and Mexico, entering a trade war with them, despite him being the damn person responsible for the last trade agreement between America-Canada-Mexico, he is saying his own trade agreement is shit! His calculations on that stupid chart were completely made up nonsense with the help of AI.
Oh and he is also the treason why a trade agreement between Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, Vietnam, and the United States failed.
Trans-Pacific Partnership - Wikipedia
Among other things, it called for a 90-percent reduction of all tariffs between member countries by 1 January 2006, and reduction of all trade tariffs to zero by the year 2015. The agreement cuts over 18,000 tariffs. Tariffs on all U.S. manufactured goods and almost all U.S. farm products would be eliminated, with most eliminations occurring immediately
After taking office, the newly elected President Donald Trump formally withdrew the United States from TPP in January 2017.
He is a moron who doesn't understand global trade at all, the same moron who bankrupted casinos, once he has destroyed America's economy, all that will benefit is billionaires buying up America for cheap, this isn't some 4D Chess move to weaken China (Wtf, I don't even know how someone could even leap to that conclusion), nearly everything he has done since taking office has benefited China and the last time he got into a trade war with China he lost because he doesn't have a damn clue what he is doing.