[jokethrowaway]

There is evidence that the virus in China was leaked earlier than we think, so their lockdown was pretty tardive as well. There are also doubts on the number of deaths reported by China (according to CNN, which is pretty pro China).

People had antibodies in the states in December 19 according to the CDC. This also matches some anecdotal accounts from a girl on instagram that claimed her family had COVID in 2019 in the States after a visit from China.

We probably didn't notice because COVID mortality is pretty low.

Containing such an easily transmissible virus is also pretty much close impossible, no amount of lockdown would have killed it.