Thanks, I'm not a psychologist or anything but I'm pretty observant and notice this to be the case in a lot of situations. I bet many of these people if you talked to them long enough in a 1v1 situation may be a bit more flexible and easier to engage. But since this guy was making a scene in the middle of their workplace and they spend all day embedded in the psychology of masking, the likelihood that anyone like this man would be able to break through the spell is pretty low to nonexistent.

Furthermore, the type of company that Costco is and the type of employee that they attract is more than likely going to be willing to go along with these policies in the first place. Although this is not always the case as I know for a fact there are many people who work at these places that are absolutely sick of masks but just don't want to be the nail that sticks out of the wall lest they risk getting hammered by their brainwashed colleagues.