Durhamjen I read the two paras you quote from the Green Manifesto and went back to my previous posting.
It is so easy to be carried away by policies that promise a world we really want, only to find when the party gets elected that their policies are impossible to implement because of their cost or because people are not like they wanted them to be so the policy doesn't work.
I was listening to a discussion on R4 radio with the author of a book on the Moslem Brotherhood in Egypt. He was looking at the inner workings of the group rather than its external workings.
As he talked about how within the group members believed, essentially that they must change themselves to being religious and pious and that way change the culture of their whole society to become a religious and pious society which God would then come into and inhabit and his divine guidance would remove all obstacles that faced them.
I was, without the religious connotations, irresistibly drawn to making comparisons with the Green Party who have a vision of a perfectable world where we all live in harmony and peace. Their policies are essentially based on working within this transformed culture where we are all live in harmony and peace, similar to the 'religious and pious' society of the Moslem Brotherhood. Unfortunately, as the Moslem Brotherhood found when they got into power, society doesn't work like that and within a year Egypt was back under military dictatorship.
If the Greens won power they would soon find, like the President Morsi in Egypt and the new Greek government, that it is one thing to promise Utopia, is far more difficult to impose it without damaging a damaged country even further.