"Go to enough folk clubs for for about forty years and such a vision will be granted to you."

Anon Guest above was me - sorry, forgot to put my name on it. I've been going to more folk clubs than I can count over nearly thirty years as punter, resident and professional performer, and I still don't recognize the situation of traditional dominance you've described. Maybe the period you're really talking about was before my time (although I doubt it was true then, either). Either way, you still haven't defined who those "traddies" were, and what was so objectionable about their performing style that they killed the folk club movement.

"Who killed the folk clubs?" is of course a perennial topic - last time I entered such a discussion, it was to defend fRoots magazine against the charge!