to be honest the way the thing is done you need to step away from the process and attack it from within the communities and at a political level.
As shown by Norwich when they write the report up they can basically sideline all objections by saying the responses were outside the normal data collection remit. And also claim that D fixes all problems.
I suggest you also go and gather statistics from the airprox board and present it to the local communities and politicians.
Per say they will assume that controlled airspace is safer than uncontrolled. So unless you attack it from the safety point of view that its going to decrease safety to a vast majority your going to be stuffed.
I suspect though that the powers that be will want this airspace because it protects that corner with Heathrow.