They should have kept Kai Tak open and allocate all private jet ops to that location
But that's not in the interests of the gangsters who run this city.
Closing Kai Tak gives redevelopment opportunities. Jobs for the construction sharks / MTR moguls.
Same deal for the Third Runway.
Haven't you noticed that we have massive civil engineering projects connecting CLK to Macau - Zhuhai, then northwards to Tuen Mun, and then on to the Shenzhen Bay Crossing.
Logically the Shenzhen Runways and SZ's extensive Mainland services to second tier cities should be integrated with HKIA. Win-Win for both.