I agree. Who are these "them"

I remember having a conversation with a highly educated bigot who was taught that it is not nice to let the people you hate know that you are prejudiced against them. He made the statement: "Don't get me wrong, I am not prejudiced. Some of my best friends are Jews". And I responded "I know exactly what you mean. Some of my best friends are WASPs". The bigot got very upset and asked me what I meant by that statement and I told him "I am sure that some of your best friends are Methodists, but you don't use that as something that you distinguish them by"