Non sense. The UK will soon be like italy if not worst if they don't act now.The UK authorities and scientific community are sure that dealing with this outbreak by this way, in their country, with their capabilities, is a far better solution than going from an inevitable outbreak to another. Debate them and they might explain it better in their term.
To me, the theory itself is plausible, as long as no vaccine exists, and no full containment on the face of the Planet is anywhere visible. It's not just plausible, it is actually where we might be heading, unfortunately. And the Brits are already planning this next step ahead.
The only viable solution so far seems slowing down the spread and massive early screening which was successful in Hong Kong, Singapore and Korea.
The virus could mutate and affect the youth in a devastating manner.
Most experts agree on that, but you have a history of finding a controversial story which you think, will make you look intelligent.