The UK allowed the Cheltenham festival [1] to take place this last week as well, attracting 250.000 visitors.
The mere fact that the UK arrived at the same conclusions as Sweden does not make those conclusions any more valid or wise.
I was (quite vociferously) of your opinion till Boris Johnson's press conference on Thursday. I changed my mind during it listening to Whitty and Vallance explain their strategy. I now think it makes sense.
Dr. John Campbell goes into the contradiction between the approach used in e.g. Sweden and the UK vs. that advocated by the WHO. He is with the WHO on this point, as am I. In a few months time we'll know which approach worked best.
https://www.bbc.co.uk/news/science-environment-51892402
Edit: Ah. The list of signatories is worth reviewing.