China is seriously lagging vs the US relatively to size. Very bad job on scaling up production
That is a over-simplistic statement and strange conclusion. China was never a big drug maker in normal time, and its export of drug in the world is ignorable. Then over the sudden it is doing a "bad" job in the field that it was never specialized? You can check who is the top drug producers and compare their current vaccine production and export figure than compare them to China, then tell who is doing a bad job compared to how good they should have been. FYI, US was always a top drug maker, in the same way as China being the world factory in other sectors. They are all doing what they are good at.
"relative to size" is another name of "per capital" which is pointless in many ways. If you only acknowledge "per capital" as a benchmark, how about China has equal number of SSN, CVN, ICBM, CO2 emission, Car ownership per capital as the USA? Or that is just crazy by all means?