Australia does a thousands times more to Papua New Guinea and Nauru than what Turnbull et al are complaining China is trying to do to us through the likes of Dastyari. Barnarby Joyce is even threatening New Zealand as part of this process.
Of course, Chinese imperialism is a threat. U.S. imperialism is our day to day reality. But the main enemy is at home. Australian imperialism is the biggest enemy working people in Australia and the region have.