Australia's current population is 24.7 million. Here is a list of First World, liveable countries with populations much lower than Australia's.

Netherlands 17 million
Belgium 11 million
Greece 11 million
Portugal 10 million
Sweden 9 million
Hungary 9 million
Austria 8,7 million
Switzerland 8.5 million
Israel 8.5 million
Denmark 5.7 million
Norway 5 million
Ireland 4.8 million
New Zealand 4.7million

Apart from New Zealand, not many people are rushing to leave these countries. So, what is wrong with us, and why do we need to keep bringing more people here?

The population of Liechtenstein is 37,666. And your point is. A reasonable question would be, what is the sustainable population of Australia. Do you have an answer for that.

Misinformed statement "Apart from New Zealand, not many people are rushing to leave these countries"

New Zealand's net migration hit a record high in 2016/17
Those arriving outstrip those leaving by 73,000 , with Chinese as the biggest group of migrants 12%, followed by UK 10% and Australia 10%.

Three-quarters of the 130,400 migrant arrivals were non-New Zealand citizens, with New Zealanders leaving and returning to the country almost balancing each other out. NZ citizens returning and Australian citizen arrivals long term rose 4% per cent to 38,300 overall.

For the umpteenth time, Paul, the sustainable population is 13 million, and we are now almost twice that and still growing. Why do we need to grow when other countries do not is the question.

Sustainable population or standard of living are the questions. The world population agenda is equalisation of standard of living. Australia had a high standard of living but it will be lowered to the world average. This is the Marxist agenda, equalisation of wealth. Australia is thought to sustain a population of about 56,000,000 by World living standards. However to retain our once high standards of living we would have a Western population of about 20,000,000. However the envious Eastern countries would want to share this standard of living, which they are on Australian natural resources of soil and water.

Yes, Josephus. The immigration equals income story is a lie. People are already propping up their living standard with debt, which, even at the ridiculously low interest rates, they are finding harder and harder to repay.

I used to believe in our present immigration numbers but experience has changed my mind. I do believe in growth but much less than the last few years. I think Tony Abbott has probably been given the right advice on numbers. Of course we need to not allow the sort of troublesome people who will contribute nothing and leach off us to arrive here.