No, but the chance of breakthrough infection with the current vaccines is high enough that it's unlikely to allow good herd immunity at realistic vaccination ra

No, but the chance of breakthrough infection with the current vaccines is high enough that it's unlikely to allow good herd immunity at realistic vaccination rates, which sucks. Immunity is always the goal if you can get it. It's not how you judge success though, you're right. Thankfully the vaccines do drastically reduce severe illnesses though, so that's something.