Many parts of the world used lockdowns to get cases under control, and plan to use test-trace-isolate (and hopefully any better treatments that are discovered)

Many parts of the world used lockdowns to get cases under control, and plan to use test-trace-isolate (and hopefully any better treatments that are discovered) to manage the epidemic. The claim that "all those infections [and presumably deaths] can't be prevented" seems to be at very best unjustified, at worst -- demonstrably untrue.