Big picture question: When it comes to decoupling, the US bloc is going to be smaller in terms of population than the EU, and in terms of GDP, it will be about the same size as the EU. The bloc which will be arising, and will be far larger than the US bloc and EU will be RCEP, which will comprise 15 Asian nations, with China being the largest in terms of population and economy, and which will likely start using the digital yuan.

This means that if the US/west decouples from China and its supply chains, the US/west supply chains will be far smaller. Smaller means that the prices of the US/west supply chain products will be more expensive because they are sold in smaller quantities than RCEP.

For the past 40 years, Chinese manufacturing at scale has been helpful in keeping inflation low. If China is removed from the picture, then inflation is likely to trend up.

I can understand decoupling in terms of political ideology differences, but in economic terms, it does not make sense, and it does not bring benefit. It makes life more expensive and harder for large segments of the population in the US/west bloc when life is already becoming more difficult and there are major signs of social instability. This situation will become even more exaggerated when global warming leads to population migrations.

If you are not familiar with RCEP, here is some information: https://www.visualcapitalist.com/rcep-explained-the-worlds-biggest-trading-bloc-will-soon-be-in-asia-pacific/