Its very sad that Enstone is under such threat. It's easy to see from the plans with the proposal that such development could be done in a way that preserved the main runway. It's obvious from the plans that the owners either do not understand GA flying or simply want to restrict flying at the site to types which can operate from grass.
This is from the planning documents, it's obvious that the applicant wants it to look as if they have considered flying activities:
1.8 The leisure activities in the main involve recreational flying of light
aircraft and microlights, which has led to the further approval of
workshops and hangers on the north side of the airfield perimeter
and at the eastern end of the main runway within the Great Tew
Estate. Although the proposed development involves a middle
section of the main runway it should not affect the flying rights of the
Clubs that operate from within the Great Tew Estate or from the
established grass strip north of the main runway. The other
recreation activities that have been approved involve off-road motor
sport activities.
Perhaps an effective method of objection would be to show the need for the runway for the clubs to continue as per today's use. The development could be moved to allow co-existance.