"So tell me why are Morris dancers more thin skinned than bodhran players or banjo players to name but two other "persecuted" musical minorities?"

Thats not really fair
I am sure that anyone with the right background and a degree in
Cultural uses of the frame drum in agricultural societies pre 1914,
would get just as prickly and pretentious as any other defender of the trad arts,if you should happen to make a light hearted and possibly disrespectful comment on their efforts.