This field of dreams thinking has seen £bns wasted in this country over many years. The idea that such a scheme should be supported without question boggles the mind.
Dedicated airport rail facilities typically don’t really work until an airport reaches a critical mass of something like 10mppa. So, unless there is some way of influencing service providers to create an integrated hub or ‘park and ride’ style service for local people to access services to London etc.. then forget it. If the Mayor is able to squander more public money on this white elephant then I despair.
What white elephant?
You seem to forget he's a politican who made promises and was voted in by the people on those promises.
Unfortunately Pug this is how democracy works and if a Labour mayor got in they could pull back on the spending at the airport, but in the past that's not what the people wanted.
As mentioned before the airport is ahead of schedule on the 10 year plan.
Even if the place doesn't work the public will still own the land.