One step at a time.
The first step is to avoid any further slide toward soft totalitarianism.
Vaccine-efficacy in whichever direction will become apparent over time.
For now however, the intent should be to avoid any expansion of measures around vaccine certificates. The best way to do this is to highlight the inability of vaccines to stem the spread of the virus ie no stopping the spread means no point in vaccine certs.
Antigen testing provides a much more effective option for all well-intentioned people.
Vaccine-efficacy may be reviewed later when trends and impacts are clearer and easier to identify.