A couple of points I think have been missed.
- Most people are commenting on the UK economy and view planning as part of that; however a planned economy has to take into account other economies that it is interacting with. The economy can not act in isolation. So a plan has to take into account the effects of the unplanned economies which is random.
- Politicians - Well the role of the politician is to be elected and the people doing the electing get the politician they vote for. To change the politician you would need to make changes on how the authority figure gets to an authoritative role.
- The real elephant in the corner, how does religion fit into this? If you religious element is not on board with your plan then there will be conflict.