Earlier quoted context omitted.
Yes with equal dose before the third dose it's less effective, but why would one compare the two vaccines based on number of dosis to get effective? Back when there were fewer variants, the Janssen vaccine only required 1 dose; was Janssen "better" than mRNA, and did "mRNA vaccines not work very well"? Here in the Netherlands, once Omikron arrived, the Dutch CDC advised everyone to get a booster (third dose). Nobody…
Against what are these efficacy comparisons? Omicron? Other variant? I have not paid attention to COVID-19 recently and I recall that Chinese vaccines were problematic against Omicron. If it is so efficient then why the hell they have this security theater in China?
Not sure why you call it "security theater". The lockdowns in China work, even against Omicron, even if it has become way more difficult. Shenyang, Guilin, Shenzhen, Guangzhou all defeated omicron without the Shanghai mess.
As for why they don't push vaccines more, that I don't know. Possibly because they are more cautious about vaccine side effects than we are. As I said, doctors in China recommend against getting vaccinated if you have other health problems. The same elderly in the Netherlands would just get a recommendation to get vaccinated because "vaccines are very safe", as we are officially told here.