Interesting... but comparing the 'carrying capacity' of Aus with the UK is not realistic.
This continent does not have the same ratio of arable land to pop. - nor close proximity to major world markets, as does the UK. Most of Aus, if you didn't know, is arid desertlike country, not farming land. To suggest a population of 36 mil in 30 odd yrs is not a pleasant prospect. Growth - Economic or otherwise on that scale - is not GOOD.
BUT- we do have areas that could benefit greatly - benefit everyone greatly, ... if there were the people in situ. to do the work to produce the food to feed not only themselves, but many more. It needs people, and the willingness of the nation - to put in the infrastructure and support services that would allow a whole new part of Aus to be opened up to 'human' productive country. HARD? TOO HARD?
I've said it on other forums, and I guess I'll say it again. Welcome immigrants and refugees who want to work, and put them where they can help themselves, and their new home country. Not in the coastal cities, which are already overflowing, and not providing these people with opportunity...but in the Ord River scheme area, for example.
We have already put our mark on the area by creating this scheme in the first place. To what use has it been put?
Who knows what can come from it, but the money would be better spent on establishing a flourishing new community, than on 'detaining' people, at enormous expense for NO gain... Not just wasteful monetarily, but also shameful - in terms of human suffering and the possible outcomes from that,-
IMO the current 'view' on immigration and refugees is inhumane and must be turned around - to become a benefit, for ALL.!!.