Recovered people unfortunately have caught Covid again and ended up with serious conditions (sadly, I see them regularly in one of the health groups I'm in). And to be fair, it's way too soon to be able to say "vaccinated people aren't developing" etc... There's really absolutely no way to know yet what the effect the variants are going to have on vaccinated people - partly because the variant is just starting to ramp up, and of course also just because we don't have enough people fully vaccinated, with enough exposure to know.
Now while I acknowledge that we're behind in vaccinations, here in Canada, the variant is a big problem: 1. it's hitting young people harder than the original strain (in Alberta, 65% of people with active infections are under 65 and 90% of people in ICU with Covid are under 65) 2. it's proving more serious (bigger spike in ICU admissions) and 3. it's spreading far more rapidly. Great example is a community near us. During the first couple waves, during "spikes" the case load doubled every 3-4 days. Now, with the UK variant, the case load is doubling every 24 hours. And of course, the US isn't exempt from this, either. Despite your accelerating vaccination program, your cases are starting to climb again, too. You're on the cusp of a 4th wave if you (collectively) aren't careful.
We're all sick and tired of this. We're all fatigued. We all want it to be over. We all want normal. But honestly? We're not close to being "out of this" yet. Not with the variant. Not with the global issues in vaccine delay. Not with places opening back up faster despite the rising cases again. We're getting there, but we're just not there yet, and if we blow this now, we're all going to end up paying for mistakes made out of fatigue even longer than if we just held the course a bit longer.
Because for all of ^^^ that, the light is still on the horizon. I do agree with you that vaccines could be a game changer, if we can just keep it together long enough for them to have a chance - aka, keep restrictions and cautions in place. If we can do that, if we can get our populations vaccinated, if we can get to summer without another major spike, then I think that in another 6 months, by fall, we will be in a much better place. We will be in a place where we can safely start loosening restrictions, maybe even masks. We just have to not blow it now.
ETA: please know my semi-rant wasn't directed at you... more just frustration talking, because I agree with you - vaccines could be the mask game changer, if they get the chance.