“Further - didn’t China vaccinate everyone?”
iirc, China vaccinated the younger folks mostly and mostly urban residents (party members/office and factory workers). Elderly not so much. Also not so much the rural population which is a huge population chunk. They insisted on using their homegrown vaccine, which, last look, was about 40% protective. I wouldn’t be surprised to see a few million rural dead given that China has experienced food and medicine shortages for some time
OK - so:
The younger/urban folks (the very ones most impacted by the “zero covid” policies - that include locking entire apartment buildings down... the bulk of the factory workers affected... The bulk of those who are actively protesting the policy...
AS to the “homegrown vaccine” - if it is 40% effective, it is FAR more effective than the US available vaccines - https://alexberenson.substack.com/p/urgent-two-new-studies-show-mrna
Of course, how is efficacy measured? In how many people “die suddenly” from it?