Steven P. McNicoll wrote:

That would make 30,000 that have shown an interest in piloting.Â*Â*HowÂ*well
are they served?

Beyond which, anyone that would be willing to pay to be flown via private
charter is forced to use the further, busier, and more congested airports.
How many dollars is that costing that city, as business executives etc.
choose to spend their money in more friendly towns?

Remember: to these people time is money. They may not care about Chicago's
vandalism, but they do care that Chicago is willing to cost them time. So
elsewhere they go.

And, of course, the dollars they're not spending in Chicago are also not
being spent again by the people in Chicago not receiving them. But that's
a multiplier, and the OP has already explained that this is too complex a
concept (ie. Econ 101) to follow.

- Andrew