I live in Victoria, Australia where they made masks mandatory and a full lockdown and we went from 700+ new cases per day to 60+ days without any new cases. I obviously cannot say they made the difference but the 2 measures together certainly have made a big change here
Just my experience
The masks are theater. Masks aren't designed to keep you from getting sick their design to prevent you from getting other people sick. Also it the virus has a 97 percent survival rate. Unless you have a preexisting condition like being super old or diabetic you're fine. There are so many people who are asymptomatic.
It's likely that considering the severity of disease for this virus is related to initial dose that masks are extremely useful. My research puts masks at about 8 percent effective at preventing infection. That may not sound like much but since the transition rate hovers around one it is significant.
We don't have to down play the severity of the pandemic to oppose the authoritarian left. It's a war and like any war there are casualties both avoidable and unavoidable. The left would simply have us surrender because they do not believe in Western Civilization, liberal democracy, or taking personal risks for the poor or those otherwise unable to implement the complex behavior necessary to avoid exposure.