Wow! The bad behaviour of one guitarist and one bodhran player is enough to condemn a whole generation

You want a list of instances that make the statement believable?
How long have you got?

What about the Festivalgoer who parks his huge caravan 20 feet from his car, and flings doors open, sound system full belt while he sits under his distant gazebo cooking on his barbie? In the quiet area.
And he is probably not a musician. But given the festival it was seen at - about in keeping with the kind of clientele the festival wish to attract. Come the downturn they will see who the faithfull are and it won't be the me generation. Or me.