I think the point was that the total death count at this time is related with the size of nursing homes. Norway has numerous very small nursing home. Sweden has very big nursing home. All over the world we see that big nursing homes are impossible to protect. Belgium locked down harder than Sweden but has the worst stats in Europe. The nursing home death are often 80% to 90% of all death.

COVID-19 is bad, but if you exclude the nursing homes from the stats it doesnt justify the lockdown damage. Is there a realistic plan to isolate big nursing homes somewhere?

Given that basically nobody wants to end up in a nursing home, but do, often to face neglect and abuse, I'd say that no, we don't really care what happens to old people in nursing homes. Out of sight, out of mind. Yeah, sure, people with a lot of moral indignation will gnash their teeth at such a claim, but I just can't see how they're actually good places to be, and how if we really cared we'd structure our society in a way that makes them necessary.

You don't have to do a full lockdown if you just want to protect nursing homes; isolation of just the nursing homes/other high-risk concentrated populations would have the same effect on those inside

We care, but we care less than if people with their whole life ahead of them die.

That's the whole point of YPLL and other age adjusted metric that the scientist and academics who study disease, pollution, etc. use.

UK also shut down fairly hard and that still didn't stop the spread in nursing homes. So lockdown does not automatically seem to stop the contagion from coming into nursing homes.

Makes sense really. Maybe a focused effort should be made to protect nursing homes.