I hear what Jim Carroll is saying, and his long association with the filing cabinet side of folk prompts him to have such views. I respect that, perhaps a bit more than Jim has previously respected my take on folk.
However, sorry Jim, if a tsunami hit every UK folk club, the music that would survive? Well, for starters iTunes would be the universal oracle on what is folk, and tell you what, the interestingly diverse offerings that have a folk genre attached by these experts in UK folk, (Californian corporate executives) is a thread in it's own right.
In any case, you live in Ireland where folk for the masses is second only to American country and western. Something that has always bemused me. The serious nature of traditional music in Ireland can be summed up by when you are doing the tourist bit and listening to music in Templbar or at Johnny Foxes. The tenor banjo player isn't just introduced as Shamus, Michael whatever, no. He has to be the three year running all Ireland tenor banjo champion.
You don't get that over here....