Its not about Covid.....
The first thing to understand is this is the Communist Party of China. They already have 100% control of their society. They don’t need any excuses to have more, because they are in a total way, maxed out.
The second thing to understand is they have the original owners manual for the virus. It came from their production source. It could have been a kitchen table with some 19 year old Bionerd doing the biology equivalent of a software app, but in this case, almost certainly it came from a CCP lab — and thus they know more about the virus than anyone else.
THIS is what drives their zero Covid policy. They know more about it. They are very much concerned.
Now you can believe they care more about their old people than the US does, or you can believe the US doesn’t know as much as they do about the virus and its potential.
There is really nothing in between those options.