As China eclipses the U.S. economy, here's what Biden can do that Trump didn't: Ask for help
Washington and Beijing are becoming economic equals. The risk is that they won't stay that way, as bad things happen when existing powers won't make way for new ones.
Author starts by saying Britain letting go of its colonies was a tragedy - is he smoking crack, or something?
From a global point of view. Had the British Empire not balkanized, the world would have been more multi-polar for the last 75 years, and the cold war might not have happened like that. Had the British empire remained, the US will have to prop up Germany/France (continental Western Europe) as a counter weight to both the British Empire and USSR. China would have been much more valuable to the US, and the US would not have viewed communism as the largest and sole threat.
The US might both invest a lot more interest and military aid to keep ROC in power in mainland, and also be a lot more tolerant and friendly toward left-wing factions in the KMT (this is a check and balance). It is not certain how this will result, as the CCP is quite a tough nut and the USSR will have a strong interest to make sure that she doesn't end up with hostile power on both end of Eurasia. So most likely, the Chinese civil war on the mainland will drag on for longer. Eventually, I still believe the CCP will win, but it is not unfathomable that this will take another 5-6 years, to 1955. Korean War will likely not happen, because the US will have 10 years to prop up South Korea's military to contend with the North. This will deny the North the overwhelming military advantage which gave them the confidence to start the war in 1950, and the North will not start a war when China is still in civil war.
The British Empire will help France, Netherland and others to keep their colonies in Asia, in order to maintain her own imperial legitimacy. The British Empire and USSR will have a converging interest in keeping China mainland divided, while the US will want to keep China mainland united to use as a counter balance against both the British Empire and USSR. The British Empire and USSR will then want to rouse up Anti-American sentiments in Japan, to weaken US's control.
The British Empire and USSR will both try to sway the US towards them, and they will be quite equally matched. The British Empire and the USA are culturally more close, with "shared value system". But the US aspires to be the dominant maritime super power, which pit right against the British Empire. The USSR will have much less direct geo-strategic conflict with the USA, but it is a culturally more different from the USA and have a totally different political system and "value system".