Actually, vaccine passports are not even 100 percent a guarantee because there are more “breakthrough” cases ( remember Pfizer is only something like 95% effective) than recurring cases of individuals that have already had Covid (.003%) a Covid vaccine passport does nothing prove that you are immune to getting the virus, you can still get it and then give it to someone else that is vaccinated or not vaccinated. I would personally rather be in any location with individuals that have previously had the virus. The chance of me getting reinfected ( as someone that has the natural antibodies) is far less than if I were vaccinated. Do, vaccine passports do not mean someone cannot give it get it.