I have to wonder: If we had protected the vulnerable the best we could, focused on treatments, and let the vaccine rip through the remainder of the population

I have to wonder: If we had protected the vulnerable the best we could, focused on treatments, and let the vaccine rip through the remainder of the population (particularly healthy children) as fast as possible would we have arrived at Omicron levels of deadly much sooner and saved more lives overall? Not suggesting we should have done that. Just wondering if it might be the case. Guess we'll never know for sure.