It's sad, but I've seen this same comment made here many times by many different people.
Wrong
Direct tourism related income (travel tax, passenger levies) = 4%. Room/hotel tax = 0.4%. While the tourism industry is big for them, it's also not possible to directly attribute how much more income really comes from this, i.e. hotel and restaurant works and their payroll tax and so on.
What exactly do you think would happen if they attracted zero tourism?