Youtube blocks music videos from Britian.

Youtube has blocked access to music video streaming that was previously available in the UK. This includes several independant labels and main stream recording companies. Youtube is presently in negotiations with the PRS which collects royalties on music in the UK and has come to an impass.
Youtube claims that the rates that the PRS is demanding are so high they would lose money on every stream. The PRS's only reply is that YOUTUBE is harming British music lovers by using this tactic during negotiations.
This leaves me with a few questions.
Is the PRS another one of these organizations that collects royalties but has no responcability to see that they get to the artist like was instituted (or attempted to be instituted), in the USA? Leaving the artist having to beg for his royalties and pay a fee to access them?
Should Youtube be streaming music videos like a television station in the first place?
This said I'm not sure of the details since the news was a short blurb and there seems to be a lack of other info so far. Perhaps someone in Great Britain can comment.
Youtube claims that the rates that the PRS is demanding are so high they would lose money on every stream. The PRS's only reply is that YOUTUBE is harming British music lovers by using this tactic during negotiations.
This leaves me with a few questions.
Is the PRS another one of these organizations that collects royalties but has no responcability to see that they get to the artist like was instituted (or attempted to be instituted), in the USA? Leaving the artist having to beg for his royalties and pay a fee to access them?
Should Youtube be streaming music videos like a television station in the first place?
This said I'm not sure of the details since the news was a short blurb and there seems to be a lack of other info so far. Perhaps someone in Great Britain can comment.