The vunerable don't get picked off if you keep them vaccinated though, that is the key part. The responability therefore is on the ones who need the vaccination rather than the ones who don't to protect themselves. So an element of personal responsability to ensure yourself is protected rather than put that on anyone else.
Personally i disagree with the idea of abandoning anything. I believe the answer is and always was vaccinations, much the same way the Flu is much less significant these days than it would have been in the past, protecting people and having normaility is far superior to containing a virus that for all intents and purposes is not going to go away. So long term solution is vaccination, otherwise you are running the same circles over and over in fear of an unknown in a rather known situation. I am sure the scientific world are well aware of covid far beyond we are for example.
Vaccinations are the way to go to keep making money, it is the medicine that i am sure would be cheaper to make that would be where the money element drops off. For a virus that won't die off, you will always need vaccinations much like you need them for the flu on a yearly basis. So theoretically, the more arms you put them in, the more you sell on a yearly basis. Especially if you are putting them in young kids who is proven to not need them, not even teenagers but young children. Its adding millions of additional orders per country for the companies manufacturing them, especially when it becomes a yearly thing. I don;t object to the kids getting the flu jab each year so the covid jab will become part and parcel of that going forward, more so if its delivered in the same jab as was being talked about last december.
But this is just a discussion point anyway, Who knows if the world is that corrupt to go to this extent for money or whether it is just a genuine concern,