"It doesn't say how far from capital cities these people live, so you could easily fit 1 million people around australia within 50 kilometres of the coast."
Sure. There's plenty of room on the outskirts of cities and in high rise apartments...where the majority do not want to live.
Still, the era of choice is quickly coming to end. Thus many people will have to buy/rent where they do not particularly want to live.
Could be worse though.
