I don't think China is doing as well as many Chinese might believe but this doom of China is predicted every other year. Chinese companies are making strides in battery tech ( CATL ) and robotics ( DJI, Siasun )

According to some China has been finished for ten years now. When are they going to go bankrupt?

Why is China finished? They have manufacturing, talent, and a large internal market - and whatever financial problems they might be facing are rather virtual.

And Japan is finished decades ago?