Yes people spread viruses but you cannot stop that unless you stop people interacting completely All you can do is limit it, but in so doing you cripple the economy, and people's mental wellbeing and livelihoods. As soon as people start inteacting again, the virus starts spreading again. The test and trace approach was supposed to help, but I really cannot see how any sort of test and trace would work to the extent required. It'll recede when herd immunity is achieved, and only then. I'm happy for them to try and restrict the spread in the meantime, but a bit of realism is needed