Re: The devils in the detail
I am not sure you got the point I was making. President Roosevelt blocked trade and froze assets in July 1941. Perl Harbor was the Japanese miltary response in December. That did not end well for Japan.
So China has made plans to survive any blockage without starting a shooting war with the USA. They have built islands to defend trade routes. They bought into European ports. They have invested in overland routes. They even run regular trains to the UK.