Depending on your point of view it's already between 8% and 25% privatised. It's not just all the outsourcing: right from the start in 1948 General Practitioners have always been outside contractors because as a body they didn't agree with nationalisation and that was the only way the Atlee government could get them on board. Then you have the pharmacies, eyes, teeth, surgical appliances etc, etc. The list goes on...