^ I think the issue most people have is that they were made to be guinea pigs without their knowledge in order to hit artificial targets. Now we are get the glad handing and back slapping when in fact a lot of people are potentially screwed as a result.
Unless you did a lot of your own research like I and several others here did you never knew about the problems with the AZ vaccine. You were never told that it came from a factory designated as contaminated, that the US wouldn't allow the vaccine to be given to its own citizens, that it was ineffective against the most virulent strains. Instead the political class and "health experts" made sure they got the "good stuff" while telling you to shut up and take whatever was offered. Now those people who did as they were told may not be able to travel to the US and are at much higher risk to health risks from variants than those they listened to.
Sure the AZ vaccine is better than nothing but lets not celebrate how people were misled to get to where we are.
I don't know what your deal is with AZ, maybe you're shorting their stock, but you keep saying things that aren't actually true. The US hasn't prevented anyone from getting AZ, the company has never applied for approval in the USA. The idea that it is ineffective is simply incorrect, and real-world-evidence is pretty clear on this. The UK overwhelmingly relied on the AZ vaccine, and their current death rate is lower than the US, Canada, and pretty much every where else.
Also AZ is as effective against the Delta variant as Pfizer in terms of preventing hospitalizations (Pfizer 96% effective after two doses; AZ 92% effective against two doses). I mean, if you want to bash a vaccine for only being 92% effective against preventing hospitalizations, then carry on. I'm perfectly happy to have had two doses of AZ, and it isn't because I'm poorly informed or a guinea pig. It's because I understand the data well enough to reject fear mongering.