Btw Jim, I was refering to hundreds of thousands / millions as counted over
the 4 decades or so the term 'contemporary folk' has been in 'common useage...

"hundreds of thousands, if not millions of UK citizens,
be they musicians, journalists, critics, consumers, whoever..
have grown up using the reasonably viable name "contemporary folk music""

Obviously I don't mean the proportion of population who give a monkey's
about 'folk' as it is right now.

For that number I have no clue,
but I wouldn't be too optimistic...