Talking about a prophylactic use case might have made sense a year ago but makes zero sense today, when more than 50% of the adult population is vaccinated and

Talking about a prophylactic use case might have made sense a year ago but makes zero sense today, when more than 50% of the adult population is vaccinated and 70-80% of many states are vaccinated while most are fully reopened without capacity limits or mask mandates. What are we doing here? Is this really the hill they want to die on?