Recently I have been reading A Passage To England by Nirad C Chaudhuri.
The book is an account of Chaudhuri's visit to the United Kingdom in 1955 and his impressions of the country. He was particularly interested in social conditions and the newly-created Welfare State. Remember that Chaudhuri was not by any means a friend of Tory England and was dismissive in his book about Winston Churchill in the House of Commons.
There is an interesting view of the Labour party, in which he describes those lefties who always must have a sense of grievance, even though they had no real grievances left.
He calls these people "talking fossils".
Is Jeremy Corbyn a talking fossil?
He seems to fit the description.