Guinness in Antigua

So I am shocked to learn that Anti-guans think that Guinness is for the black man ! Down in Falmouth harbour we stopped by the skulduggery cafe and it transpired this very myth.
So what is Guinness in Antigua and why do they not think that this drink originating in colder waters is not one for the white boy ?
Maybe you can tell me ?
Well there is the Guiness Party in Antigua if you like your beer bitter like me.