Earlier quoted context omitted.
This is a smart observation. The UK is now taking the conservative view because it's the long term view, that this will likely become a recurring seasonal virus (or a one-time virus that keeps knocking on your door until you get it), and therefore there's not much point in a national "lockdown" to "stop" the virus, because as soon as a nation relaxes its lockdown the virus will simply pick up right where it left off.…
Except if it became seasonal there's going to be vaccines (with my faith in the medical research). And if the death rate is as high, everyone is going to get it. Making the sacrifice that british public is going through now senseless. Also, it becoming seasonal could also be a self fulfilling prophecy due to its policy.
Once a vaccine that works is out I’m sure most of the world will get it. The lockdown is all about preventing (early) deaths.