As soon as countries like China, India and the USA do something significant that is when we should start. We are not even a pimple on the world’s arse and countries similar to us in population will have virtually zero impact if those countries keep burning fossil fuels.
Why do you think the US keep creating these wars around the world? Because they care about democracy and wish to free countries? Give me a f**king break. They do it so they can steal their resources which they require for their growing economy.
It all comes down to values. There is 70% of Australians who support meaningful action on climate change.
Your values are that you will conform only when others fall into line. I am not inside your head, but would predict that you are a skeptic and find no compelling reason to support a scientific principle that you are struggling to accept.
China and India will certainly be the last to fall into place, however their excuse is that they are largely a third world country or in China's case have emerging middle class. In both cases however they have a population base of billions where the vast majority are still poor. The USA were on board and a primary driver until recently, when a climate change denier took charge.
My personal opinion of climate change deniers is that they don't really question the science. It's that they have assessed the personal cost and the consequences of inaction. Their conclusion is that provided that they will be fine, what happens to the rest of the world is of little importance to them.