I use the term "lockdown" as an all encompassing phrase to cover basically all strategies; but yes you are quite right, they are two different strategies, although they were implemented at exactly the same time.
And that is the reason why people are not following your point.
You're using the wrong word to describe the care home disaster.
As said above, lockdown and the care home disaster are two separate things and people generally support one whilst condemning the other.
With care homes, politicians simply panicked into clearing hospitals. This is what happens when you deliberately run the NHS into the ground - you end up with no room for a pandemic or national crisis. In any other walk of life, someone would quite rightly have their career ended by such a wilfully incompetent mistake.
With lockdown, we cannot know for sure what would have happened if we had not locked down but the evidence that they work is persuasive. We went from an exponential growth of cases to a flatline within a couple of weeks. If you can provide a better explanation than it being as a result of lockdown working then I'm all ears.
I do agree with your point about masks. The suggestion that they work simply offends my intelligence as a former scientist. I know for a fact that they don't work and that this was about trying to manipulate the behaviour of people as a visual reminder that we are in a pandemic and to behave accordingly - social distancing, hand washing etc. I'm not a child and resent being manipulated like one by politicians I have no respect for.
Social distancing and hand washing are both valuable I believe and I am persuaded that they have worked well.
So in summary, it's just masks which I have a problem with in general - well, that and the infuriating risk aversion which is paralysing decision making as regards removing restrictions. Almost everyone in the vulnerable category has had their 1st jab and it is crystal clear that the link between cases rising and deaths and hospitalisations also rising a few weeks later has been well and truly broken. There is simply no excuse for this pussyfooting around and all this nonsense about variants needs to stop. If a new variant gets around the vaccine we'll deal with it then. In the meantime, there's no reason to stop those of us wanting a life to get back to that. Everyone else can cower under the bedsheets if that's what rocks their boat.