" you've declined to answer simply."
If you say I haven't answered them, that is not true - I've dealt with every single point you've made to the best of my ability.
If you mean I haven't provided a simple answer - as far as I'm concerned, there isn't one.
Folk song is a far too complicated subject for yes and no answers.
Perhaps you mean I haven't given you the answers you wanted - sorry, can't help you there.
"What do YOU call those type of songs Jim?"
I've already pointed out what Jack Blandiver wrote about Peter Bellamy's description of them.
I don't need to give them a title; as much as I enjoy some of them and sing a few of them, they are "new songs written in the folk idiom".
That'll do nicely, thank you very much.   
"PRS"
Just hit on a sore spot with me Muskie; the PRS jackals are the last people I would go to for a definition - they neither know nor care which cow they milk.
One of the great experiences in all the time I spent in folk song was the realisation of the freedom and democracy that involvement in folk song brought.
I could stand up and exhibit my limited talents in the venues then available I didn't have to worry about the envelope dropping on the doormat demanding payment for that privilege.
When I met MacColl and Seeger, I was given carte blanche to do whatever I chose with the songs they were churning out and were researching for their own use - wheeeee!
Their publishers may have copyrighted their own songs on their behalf but I never remember their ever objecting to anybody singing or using their songs, with or without their permission - I still get a bit of a buzz to think I was singing 'First Time Ever' ten years before Elvis or Roberta Flack.   
I find it more and more disturbing to read queries about obtaining permission to record and perform "folk songs".
Don't know whether it's the same in the U.K. nowadays, but publicans who play music in their bars now have to watch the door in case the man from I.M.RO. (Irish equivalent of P.R.S.) drops in demanding his pound of flesh - different days, different ways.
You and P.R.S. may be happy to call it Contemporary Folk - then again, some people don't give a toss about the letter 'D' disappearing from the the English language (up to recently I believed 'Brawband' to be a musical criticism in Scotland)         
Takes all sorts!
Jim Carroll