You have as much right to your say as anyone else Park Royal, especially if you are still a British Citizen, though perhaps not as interested because of economic connections, as those of us still a bit closer to the action.
But I would be interested in hearing your answer to the suggestion that WA, for instance, because of its remoteness from the central government and perhaps feeling a bit peeved and left out sometimes, was to hold a referendum on separation from the Commonwealth (of Australia).
To me, language differences aside (although you might feel that in some parts of the larger cities English is a minority language), there is a parallel between the Commonwealth of Australia and the commonwealth of the EU. I am profoundly sad at the impending loss of my European Citizenship and I think most Australians would feel the same way if really put to the test of separation on their continent.