Atman,
What part of too many people do you have difficulty with comprehending ? May I suggest you go to a country with 200 or more million people & see for yourself.

If action is taken to limit our population by cutting immigration, this should be combined with efforts to raise our appalling literacy levels.

This can be done by bringing back the Dictation Test.

Agree with Cheryl. Single issue parties, usually have a very short life cycle!?
However, we do need to remain cognisant that only the thin green edge of the Australian continent will reliably support us and guarantee our food security. And there is a finite limit to how many that and our finite fresh water resources will support
Even then ,climate change is changing that, and making the south-west and the south-east, less viable as food production areas.
We also confront a future, where we will have less reliable fresh water supplies and possible energy deficiencies?
Rising sea levels could make some of the most fertile food production areas, unproductive, salt laden, coastal swamps.
The Nile delta, Bangladesh, and the Mekong delta, just to name the most glaringly obvious.
If population growth continues at current levels, we will need to produce 80% more food by 2050?
We do live on a finite planet with finite resources, and do need to invent a prosperity model that no longer includes endless population growth and the continued depletion of finite resources. It's a no brainer!
Simply eliminating poverty in all its forms and guises, will produce far more prosperity for far more, than the dog eat dog exploitation/individualism, which creates so many problems, and is ever only viable with endless population growth. And that model is now a zero sum game!
Recycling can and should replace mining, and it will create more endlessly sustainable jobs and wealth creation opportunities, than digging a few holes in the ground, to provide temporary incomes for a few.
What we do need to make this alternative growth model viable, is very low cost clean energy! Suggest you'll read, Thorium, cheaper than coal.
Rhrosty.

Individual - Ive been to the USA and it didn't seem crowded at all. In fact there are vast areas of wilderness where few people live.

Your idea that everywhere will eventually be like an overflowing India is childish and wrong. What you are noticing is the lack of hygiene, poor organisation, poor infrastructure and few facilities - not overcrowding.

Humans are a noxious pest, a plague, a cancer.

Everyone should stop phucking. No-one should use depletable resources: they have to be saved for the future. Of course those in the future will be under the same constraint for some still more distant future, so anyone using any depletable resource should be shot. This cannot be argued to be bad, because reducing human life is the ultimate ethical criterion, and only a moron would contend that people have any right to consume depletable resources, on the ground that you can't have indefinite growth on a finite base.

Everyone should be issued with free sackcloth and ashes - but hang on - making them free might encourage overconsumption! No - they should be FORCED to pay for their compulsory allocation of sack-cloth and ashes.

Oh and the sky is falling - and it's all man's fault. If only we had more police to ban things I don't like, then what a wonderful society we would live in.

vast areas of wilderness where few people live.
Atman,
I don't suppose you've ever given it any thought as to how vital these areas are for ALL life on Earth.
the USA is not over crowded ? what is your definition of overcrowding ? Do you think Chicago is not crowded ? How many areas in the Americas could take many more people ? Why do so many risk everything to go across the border ? Because Mexico IS overcrowded & people are fleeing the poverty due to overcrowding.
Have you noticed how Norfolk Island has put a population ceiling in place ? Have a look at the rivers that flow through large cities. Do you like the pollution which comes from so many people crowded into a small area ? If you continue to advocate population growth then the whole planet will be crowded. Do you want that & for what reason ?