Usual 'Finger on the pulse' government research.
Most wannabies, myself have approached MPs on this subject, and the usual response could best be described as interested but not bothered. It looks like aviation could be more of a vote winner for not supporting it. Noise, pollution, rich mans playthings. Seem to be the general synopsis of the public.
If the public could realise the benefits of having a local airport, or the significance of Aviation as a whole, things would possibly improve, what about a 'get to know your GA campaign' properly promoted and not just run in Pilot and Flyer. Its the grass routes of the Industry and should be nurtured.