//Whatever you think it's easy to say it here but no government would take the sort of risks you propose//
Why not? They take identical risks every winter with 'flu. Nobody suggests shutting down the economy, closing the schools confining people to their homes every November when 'flu gets a hold.
I've never said there is no risk. I've consistently said that the virus will spread (something that government and many people seem unable to accept), people will become infected, the vast majority will see little or no significant symptoms, a few will become quite ill and a very few will unfortunately die. That will happen whether or not we all walk around with masks on, whether or not we all avoid each other as if we are plague carriers, whether the schools are open or closed.
//A big second wave would crash the economy, risk lives and would be political suicide. You must know that really.//
I know no such thing. The first wave didn't crash the economy - the government's reaction to it did. I have referred to the 1968 "Hong Kong Flu" epidemic. This caused around 50,000 deaths in the UK. Nothing closed, schools remained open, nobody walked around with masks on. The difference between then and now was that the population was not led to believe that the government could "keep them safe" from an infectious disease running at pandemic levels. As a result the government didn't introduce ridiculous measures in an attempt to do so. The economy survived largely intact and so did the vast majority of the population. Only half of that is true today.