The key words being, "if their situation warrants it". What you define as warranting it, and what I define as warranting it, and what the Abbott Government defines as warranting it, are very possibly three different things.
You will likely find this extreme as well. I think the Immigration Reform Act of 1965 was the worst fucking thing that ever happened to this country. Until then, the USA was like most countries. We encouraged immigration from countries most like ourselves, who would assimilate, and discouraged it from countries who were least likely to do so. The IRA 1965 reversed all that. Now we encourage immigration from countries least likely to assimilate well into our culture. Fucking stupid if you ask me. You don't see countries like Japan doing that, or even Mexico doing that. Costa Rica certainly didn't, when I lived there, and they had the most liberal immigration laws of any Spanish speaking country in the world.
We need to throw out that Act forthwith. We need to remove all illegal immigrants immediately. All Muslims need to be removed from the United States forthwith. Anybody that's already here legally can't be removed, of course. Australia should return to the White Australia policy forthwith, although its own Indigenous People should be treated with respect and dignity.