The U.S. government hates the China-led Belt and Road Initiative and the multipolarity it represents, and will do whatever it must to torpedo it. From Mike Whitney at unz.com:
A Uyghur separatist group that helped to topple the government of Bashar al Assad has declared its intention to return to Xinjiang in order to conduct military operations against the People’s Republic of China. The announcement suggests that Washington and its allies are preparing to open another front in a war that has already plunged large parts of eastern Europe and the Middle East into chaos. The announcement was mostly ignored by the western media, but analysts believe we may have entered a new phase in America’s struggle to preserve its waning hegemony, a phase in which the probability of a direct clash between the United States and China has increased dramatically.

Also, if we assume that Washington’s sabotage of the Nordstream pipeline was designed to prevent the economic integration of Russia with the European Union, then we must assume that the same blueprint will be applied to China. Washington will use its Uyghur proxies to sever the critical arteries that link China to Europe, thus, blocking the rise of a free trade Superstate that would severely undermine US regional influence. This means we should expect a wave of asymmetrical attacks on vital infrastructure aimed at preventing the development of China’s signature Belt and Road Initiative. (More on this later) As always, US foreign policy is guided by the despotic credo called the Wolfowitz Doctrine which states the following:
Our first objective is to prevent the re-emergence of a new rival, either on the territory of the former Soviet Union or elsewhere, that poses a threat on the order of that posed formerly by the Soviet Union. This is a dominant consideration underlying the new regional defense strategy and requires that we endeavor to prevent any hostile power from dominating a region whose resources would, under consolidated control, be sufficient to generate global power.