The uncomfortable truth is, the British government have weighted cost and benefit, and they have decided, the death of thousands or more is not worth the cost of near-absolute lockdown of a country, It might lead to total breakdown of the economy, full-recession, and that may cost more lives anyway.
And so begins the Great Reaping. Get rid of the old and the sick, so the nation can move on, freed of the burden of caring for an elderly population that consumes but does not produce.
The problem is they might reap much more than intended. I'd really like to see estimates of how many economically productive members of society will get caught out by the fact that sadly they can't have life-saving treatment after an accident (or will get a nasty covid infection post-op) because the health system shut down for weeks/months or gets permanently gimped (if it kills off or traumatizes enough doctors and nurses).
Also, what are the chances nearly all of the recovered infected are in near mint condition post-recovery? If it turns out non-trivial numbers now have permanently reduced lung capacity or pregnant women produce a lot of wonky babies, what then?
That's not quite the point though, is it? The point is total breakdown of the economy, full-recession, and that may cost more lives anyway. The idea seems to be that you can decide: do you want thousands of deaths, or do you want thousands of death and an economic collapse?
And so begins the Great Reaping. Get rid of the old and the sick, so the nation can move on, freed of the burden of caring for an elderly population that consumes but does not produce.