Easy for China to say, it's a decade before the UN requires them to reduce emissions. Meanwhile Australia is on track to meet the Paris agreement.
Zero net emissions by 2050 is not a thing. If the government is reluctant to commit to the proposition, it's probably because it will prove impossible.
And yet China is accellerating its move into renewables. Oil and gas consumption dipped in 2020, renewable energy production continued to grow at the same rate, largely because of China. And China is benefitting not just by using the technology but building and exporting it. Australia had a competitive advantage in renewables in the 90s, we squandered that through short-termism and suppression by the oil and gas lobby.
Through fudging carbon credits Australia may achieve the current Paris goals but we are still exporting coal and LNG thus making the world worse off.
Moving towards carbon neutrality is in fact a thing, and it's pretty much the US and Australia who are the last hold-outs. Companies - even O&G are taking this step by themselves. Banks are ceasing to invest in fossil fuels. State governments in Australia are rapidly moving towards more renewable - even Gladys is investing 32 billion.
The world is changing around you and you stubbornly insist on remaining in 1979.