Guess you don’t know many nurses? If you look through the “do you or anyone you know have covid” thread you’ll find a fair number who are on onboard with masks who got it.
Now, I’m sure you’ll make an exception to your judging for front line workers. And maybe workers in the meatpacking biz. And maybe a few others. But the fact is many people still have to interact with others and no, unless it’s a properly fitted N95, we don’t all know masks dramatically reduce one’s odds of infection.