To be honest, you've taken a turn in this direction - it clearly bothers you that I don't sympathize with the man who became president again, despite the fact that he should be behind bars.
The worst happened in the years after if we talk about the economy, but I agree that some bad things happened during the time of the mighty Donald - how many people died because they listened to his advice that drinking disinfectants can kill the virus in themselves?
Technically, it started in 2014 and continued in 2022, so three US presidents did nothing to prevent it - and neither will this one now, who promised to end the war in 24 hours, and it is rumored that he will blackmail Ukraine into agreeing to peace on the condition that Russia keeps all occupied territories.
He was bad from day one, you don't need to be a doctor to see that the man is demented, but the same question can be asked today - why is a man with 37 confirmed indictments sitting in the White House? They (Americans) call such leaders in other countries dictators, and they have chosen exactly one of them to lead them for the next 4 years. When you look at the kind of people he surrounded himself with, then nothing normal can be expected for the next 4 years - because how will a journalist lead the Ministry of Defense or a man whose brain was eaten by worms the Ministry of Health?
I'm not going to play prophet here, but with the current balance of political power between the US and China, I don't see how the US can win an economic war.