davidjohnson6, 2.6 million cumulative in the first 3 years of opening. I'm not comparing the current passengers of decades-old airports with one that was brand new, as it's natural to expect a long established airport to achieve higher (although quite a few struggle to get 2 million over 3, 4 or 5 years).
2 million in the first 3 years of a brand new airport, in my opinion, shows that the demand is there if the flights are there. But the flights currently aren't there. Which is why it's the airlines mindset that needs changing, rather than the passengers.