I told you why I believe it started to decline and when - nothing to do with "my view"

Yes it is Jim. You told us what you believe. Which is precisely your view means. I, and many others, disagree with that view but, again, that is only opinion. The only fact that can be verified is that there are not as many folk clubs as there used to be. There are a number of theories as to why that is but until someone can verify one as true that is all they are. Theories.