they absolutely did not unleash a plague on the US, what happened is actually worse
1) the US wasn't even the worst harmed, because the US isn't part of belt and road. the worst hit areas in the world, outside of China, are part of belt and road. this damaged Chinese economic interests way worse than it did anything to the US.
2) it's very very obvious that this was a lab leak. it was not intentional. this is terrifying because it's going to happen again.
3) and it's very obvious that the international health bureaucracies were totally aware this was going to happen eventually and were willing to lock everyone down because they were shitscared the Chinese had let out airborne cancer of the AIDS.
the real villains here are the Western, educated, mostly white american and european bureaucrats who caused the situation in the first place by setting up that lab and then reacted to the entirely predictable results in the most retarded ways possible. And they'll do it again if they get a chance.