The idea of vaccine passports is an absolute nonsense that should never see the light of day. If vaccinated people can still catch and transmit a virus, what use is a vaccine passport as a means of protecting people? You could theoretically have a venue full of fully vaccinated people that all have covid. Surely proof of a negative test overrides a vaccine passport in this instance, as you’ve shown that you don’t actually have the virus and aren’t a risk of spreading it?
If we see vaccine passports enforced then it categorically proves that this whole thing isn’t about a virus and protecting people anymore.
I think this has a couple of incorrect assumptions in there. That vaccine passports are a new thing, and that vaccination must be 100% or it’s no good.
Vaccine passports for international travel have been around for decades for a variety of diseases, yellow fever is a good ‘go to’ example here.
The Yellow fever vaccine is widely considered to be the most effective vaccine ever made (98% or 99% effective I think, with lifelong immunity). But that still means that 1 or 2 people in 100 can catch and transmit it, and many countries require proof of vaccination to travel there, but they don’t ask for proof of a negative test.
It’s about probability, and reduction of risk, not elimination of risk.
So I’ve got no issue with Covid vaccine passports for international travel as it’s a well established preventative measure. I’m less convinced on in country use for access to hospitality etc.