Earlier quoted context omitted.
> Cut off trade with China? That would definitely be an interesting experiment. I suspect prices would rise slightly and we'd find out just how dependent we really are. After a week or two there would be a joint statement of the leaders of the Western World that they have unanimously decided to support the Chinese action, in fact they'll come to help to cart rubble personally.
I'm not sure I follow your reasoning... are you implying that trade with China is more important for the entire western world than international trade with the all the west is to China? I could certainly see leaders in certain countries such as France who have been actively selling weaponry to China going "to help cart the rubble personally" but there's no way Obama or his next successor would do that.
Yes, we are utterly co-dependent at this point in time.
Cutting trade with China would take a decade or more if it can be done at all at this stage.