Where is the evidence that it didn’t work?
Things don't get better from here.
Compare China death rates over the pandemic to basically anywhere else. If saving 5-10 million lives (estimated based on % of US population lost to Covid) doesn’t count as working, what would?
No you wouldn't. You'd be locked down in your apartment. Also, your social rating would not permit you to use means of transportation.
Just looking at raw lives saved (especially when most of those lives are older than average age of death) is too simplistic.