What you're saying makes no sense in the context of:

Total population. The U.S. has 330 million people. Australia has 25.36 million.

The U.S. government opened up testing results to be any presumed or probable cases.

Also, the lockdowns didn't just "hurt the economy," it literally lead to actual deaths, from starvation deaths, to missed screenings for cancer and heart problems.

If you want to learn how, read:

How the CDC deceived the world on Coronavirus death counts.
@thepholosopher/how-the-cdc-deceived-the

How state Coronavirus lockdowns led to massive increases in preventable deaths.
@thepholosopher/how-state-coronavirus-lockdowns-led

How the government murdered tens of thousands of grandmas in 2020.
@thepholosopher/how-the-government-murdered-tens

Coronavirus is treatable. Government suppression of this fact killed millions worldwide.
@thepholosopher/coronavirus-is-treatable-government-suppression