Ok. The WHO already said that covid-19 will become endemic, meaning that it will continue existing in the pop and coming back every year like other seasonal respiratory diseases. The comment below works on the premise that we can eliminate it — very unlikely. https://twitter.com/dr2nisreenalwan/status/1346711081817960448
Vaccines can work to reduce the amount of death and hospitalization to levels which are deemed acceptable by capital, but covid will continue to come back and mutate just like the flu, requiring a vaccination effort each season
The only way this could be prevented is to lockdown nation states for up to 10 weeks, and drastically reduce if not eliminate migration, travel, and immigration during that time and beyond (see: New Zealand).
Things that could help reduce transmission of respiratory viruses in general would be to reduce density of urban areas and workplaces. We could also reduce the mortality and morbidity of viruses by increasing health care capacity and improving management
Those are the actual real options here. What’s best I don’t know. But these on again and off again lockdown-lite things we are doing are not a “solution” to covid and likely never were.