It's not just demographic, of course, it's political. Our politics and media at the moment are so polarised that the government will get - attacked whatever it does. And while it's possible to reason and be rational when - as in Sweden's case - you're talking about a few hundred or thousand dead more or less, it's impossible to do that when the numbers are in the tens of thousands. Put simply, no UK government could have made that call and stayed in office.