Well done David Carter: if what you say is true, that anonymous divisive troll has now won.

You mention your age.
Unlike you, younger people have no knowledge of the B&W minstrels and related blackface mimicry. They don't carry this baggage around with them as those of previous generations do.
You are in effect perpetuating the memory by discussing it at all.
It has absolutely no connection with the border morris of today, and it upsets us when others unjustly put the burden of this connection on us.