where is it established that black face in modern Border, (circa Shropshire Bedlams - was/is John Kirkpatrick a racist then?) has racist history or connotation?

I've never said that blackface in modern Border has a racist history or connotations. I'm saying that blackface as such has racist history and connotations. If the history and connotations of blackface in modern Border are so different, then, er, what are they?

The Villan, on your side of the argument, said: Ignorent people immediately assume the wrong thing and do not take the time to look into the tradition.

So, what would they find if they did look into the tradition?