I am genuinely asking you - how are we selling you out?
The fundamental issue is that a large tract of prime real estate devoted to being an airport will probably never be able to compete with the returns that could be offered by developing the land for other uses.
The problem is the privatisation model in the first place and the bright idea that a piece of vital public infrastructure on prime land should somehow pay for itself. It is ludicrous and it will never be able to compete on a level with other commercial development. At the end of the day the airport gets squeezed to death. Aviation needs get sold out to other more lucrative prospects that offer greater returns per square metre of land.
At the end of the day do we want functional airports or not? We are in half-baked territory right now...