This exact whinging happened in England in the 1980’s. The ID10T’s of the “racial sensitivity police” wanted to change the rhyme to “Baa Baa GREEN sheep”.
Tempest in a teapot, and the public laughed them off the stage. I think the Aussies will do the same.
Then I guess all the little purple penguins at the elementary school can read about “Baa Baa Green Sheep.”
The world has gone nuts. That’s all there is to it.