I don't think the vaccine passport thing has legs in this country. At least not most of it.
My overarching point is that by the time everyone has had a chance to be vaccinated, we are going to have to just as a society accept some risk and open up. We allow people to smoke, drink, drive, eat garbage food, and people die from it every day. I think sensible closures make sense up until we reach the point where everyone that wants a vaccine has had it. There are tradeoffs for living in a free society.
Friend of mine just went to visit family in China. Took months to set the trip up, then had to fly to LA, quarantine there for 10 days, get a test, get the test accepted by the Chinese embassy in LA, then fly to Beijing, stay in a hotel for 14 days without leaving the room, then wait another 7 days before going to the destination city. And that's for someone with a Chinese passport. Nobody would ever put up with that sort of thing in this country, nor should they.
Everyone has made sacrifices, and I'm sure most of us would have signed up for 600K deaths 12 months ago because we figured it would end up a lot higher. At some point, we need to move forward.