I don't have links to hand, sorry, and have to go out shortly.
However, I don't remember the second half of the 20th century as being that wonderful for all. Some privately rented housing was extremely sub-standard and tenants were frightened that they would be 'put out on the street'. The NHS didn't have such demands on it and in some cases was not that wonderful in our experience.
Strikes resulted in filthy streets, bodies left unburied, inconvenience to the general public on a daily basis. The Winter of Discontent resulted in the election of Margaret Thatcher.
People struggled on poor wages. We often had beggars knocking on our door looking for food too.
These 'golden eras' did not really exist.
Yes, things do need to improve and I hope they will when Labour comes to its senses, realises it should look to the future not the past and elects the right leader to take them forward.