Correct. He is a simpleton. 'Hole is smaller than virus, therefore mask does not work'. And then he wants you to speak with authority about why he's wrong. The virus can't escape a mask because the airplane it needs to transport it IS bigger than the hole. Maybe that will sink in. Maybe not. Who cares at the end of the day. I cannot teach advanced calculus to my Cairn Terrier. It is what it is.
Yeah, some things are self evident. A basic knowledge of the transport of the virus tells a reasonably intelligent person why masks work. The problem here is that Evmetro, among others, does not fit that description.