this; vaccine is not a miracle cure; you immunity system is not magic reflector deflecting incoming viruses/bacteria before they enter in via oral/nasal channels/injection(insects)/wound(insects) only thing immunity system really does is says no to symptoms, yes you may carry covid, but you may not suffer from it thanks to immunity system being up to task
as such, vaccine has always been about personal safety, not surrounding, vaccine protects you, not your neighbor; and vaccine is to those whose immunity system needs the boost ...never to those whose immunity system is already stronger than twice vaccinated poor immunity system ones