[ZoomerCretin]

Immunity: the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.

The vaccine gives immunity, by the definition of what immunity is. The reduced efficacy was communicated as soon as it was confirmed. There was no lie. This is how science occurs. The best conclusion was given from the data at the time.

Regarding the metrics for vaccination rates that would allow full normalcy: they existed before the Delta variant, and unfortunately this new variant has made herd immunity impossible.