"Especially when the greatest, richest treasure trove folk music to be found anywhere in the world comes from America. No other place comes close--certainly not the UK. America is where it's at and it is what I know."

Of course, dear boy. America is The Greatest Country In the World, after all, so it follws that it's music must also be the Greatest Music In The World. All music that is any good was invented in the good old U S of Good Ol A. There's certainly no need for you to know anything about music from anywhere else to be convinced you're right. It's so obvious, it doesn't need anything like facts or evidence.

But you must expect that some of us will disagree with you about this.