Every country in the world has a majority of its citizens being for fighting climate change. That is including the US. The issue is that all governments in the world are corrupt. The biggest reason for that is capitalism. That is why you can not vote for target directly and would have to vote for the neoliberal Biden instead, if you are allowed to vote in the first place that is. So capitalism has to be the first and most crutial target. Destroying liberal democracy, is just going to end up with anarcho capitalism.
Also every time we went for a perfection on a large scale, we ended up creating massive problems. There is the slight little issue, that people do not all think alike. So you have to force others to do as you wish, to create perfection. I hope you see the problem. We absolutly need better not perfect and we absolutly can and should do better then Biden.