Trump isn't starting wars, nor is setting tariffs a hostile act.
At some point the American people will want their president to STFU and let the Dept of State handle the day-to-day talks and negotiations before he starts with his idiot mouth running two directions at once.
You like the DS State Department blob? You should just speak for yourself.
How Brazil and China do business with each other is not the proper concern of the US President.
The US government should manage its foreign trade and its currency in a proper manner compatible with the interests of its citizens under applicable law.
Ditto Brazil & China.