Paul Hunter, professor in medicine at the University of East Anglia and an expert in infectious diseases, told the committee: "The concept of herd immunity is unachievable because we know the infection will spread in unvaccinated populations and the latest data is suggesting that two doses is probably only 50 percent protective against infection."
Paid source: https://www.telegraph.co.uk/news/2021/08/10/delta-variant-has-wrecked-hopes-herd-immunity-warn-scientists/
The CDC is also saying that vaccine effectiveness wanes 50% in 6 months. If I'm reading this right, then this means that in Winter the double-vaxxed will only be about 25-50% protected against infection from Delta variant.
Given this information, then what is the point of a vaccine passport? Everyone is at risk of infection.
For normies: this means the vaccine does not create adaptive immunity, because you have already been exposed to Corona viruses in the past and COVID-19 isn't sufficiently different so there is nothing new for your immune system to learn. Therefore there is no benefit to the vaccine.
All it does is create a temporary boost in antibodies which is not a good thing in and of itself, and potentially bad.
Infact, there is plenty of evidence that is bad.