It does make sense in a weird way.
Releasing virii has the same problems as gassing your enemies, but to a much greater extent. The problem with releasing gas is that it often blows back and kills the releasers. The Chinese know this. They know their own people are going to get whatever it is they release. So how was that problem solved? They made it so that the virus wasn't very serious, that it wouldn't kill entire populations. That leaves our reaction to the virus as the only difference between them & us. With a little propaganda from them, we went into total lockdown and spent billions on vaccines. What did they do? The accepted the loss of a few of their most unhealthy, one-foot-in-the-grave citizens and put out what is reportedly a useless, sugar water vaccine.
They killed us by perception.
