I'm not saying CAL doesn't have its problems but your information is incorrect (apart from the losses widely reported in the press).
Pilots are being hired both Ab Initio and contract on all fleets and all seats, 737, Dash-8 and ATR. There continues to be a demand for more pilots. Rostes run 55-65 hrs/month on the 737.
CAL has taken delivery of 2 767-300s this past week which will be servicing JFK and YYZ and later, London Gatwick.
The entire airspace has been Open Skies for several years now and many airlines have tested the waters. Spirit has come and gone as has TravelSpan but WestJet flies into BGI with JetBlue pushing further and further south.
RedJet was a disaster of bad planning and a poor business model from the beginning so I'm not even counting them.
Removing Government support cannot work because in order to operate a service like the air bridge between Trinidad and Tobago economically will require a higher airfare, plain and simple. Poorer people will not be able to afford it and it remains necessary for people to travel between the islands.
It's a similar story with the North American routes. If the government left it to AA, Air Canada and the like to link T&T to the rest of the world, they risk exactly what happened several years ago when Air Canada decided to stop the POS-YYZ route with 3 months notice.
Trinidad cannot risk leaving air links to carriers that do not have Trinidad's best interest at heart.