Well George Formby had buckteeth, if that means what I think it means. I think you have to read rather hard between the lines to see any antagonism or hatred in those songs. "Racist white fuck" - I think you'd find there are black and Chinese people in Lancashire who would take great exception to that description of a man who is still held in great affection.

The truth is, we do find the differences between each other amusing. The important thing is to make sure that this isn't expressed in a way that is hurtful to each other, or encourages people to despise each other. At different times and places the rules of thumb for doing that are going to vary.