The idea of using masks has never been called "foolproof" just you'd be a fool if you didn't wear one around others and practice
Social Distancing and wash hands. Your invention (or is that Breitbart's?) is that masks don't work. Listen to what Fauci says, it's at least
better than yours and your grandmothers information. We wear masks to not spread the virus, not to not get it. If you're near someone
who isn't wearing a mask and they have the virus, the mask does little. If you have the Virus and you're wearing a mask, it helps
stop the spread if you're around others.
And as far as your GM and her practices, only those who don't pay attention to this and predisposed to listening to the R Governors are not doing the right
thing. The point is, Stay at Home unless you it's for something important like groceries. A mask isn't a social statement or a hazmat suit.
Link: This is a better look into COVID19