A couple of points
Planetruth;
Your article was one of the best I ever have read on PPrune. While I don't agree with 100% of your points, it was very well written and extremely thoughtful.
As for why Air France stopped flying the Concorde to N.Y, it ws strictly economics. They were averaging only 20 passengers a flight which will kill any airline rather quickly!!! I will always remember playing rugby next to the airport in the early '80s and seeing this thing take-off. The ground shook and the both teams stood around to admire it's beauty and grace....and after the ground stopped shaking, the match continued.
Newark