Why is it so acceptable these days to judge people by their associations, even with so many degrees of separation between them? He worked with a company which w

Why is it so acceptable these days to judge people by their associations, even with so many degrees of separation between them? He worked with a company which worked with people who used to be antisemitic. Who hasn't done that? A similar thing happened to the queen of England who was criticized by the media for riding in a car with a man (her son) who was friends with a convict.