The 2 million number from the imperial paper everyone likes to quote is explicitly
> In the (unlikely) absence of any control measures or spontaneous changes in individual behaviour
Where specifically voluntary quarantine (50% compliance) and case isolation (70% compliance), and closure of schools are exanples of interventions discussed. In what world do the current death totals (340k in the United states) disprove the idea that interventions saved lives, and more effectively managed interventions would have saved more lives (as they did in other countries).