Per capita most definitely matters. Every human is equal, there is no reason why one human has the right to emit much more than another. If we go by your reasoning, then all developing countries should figure out how to raise living standards without consuming more resources so the Americans don’t have to reduce theirs.
You are incorrect that China isn’t doing anything to lower its impact. It’s emissions would be much much much worse for the standard of living increases it achieved without investments in clean energy and EVs, tech that it is exporting abroad to the benefit of the world and to the dismay of America’s petro dollar dependence.
With such thinking, I now get why the rest of the world is beginning to hate America so much.
I didn't say China isn't doing anything. They are rolling out a mind boggling amount of clean energy right now. More than any other country by far. It's honestly incredible scale. It unfortunately isn't keeping up with their emissions though. The data is from 2023. It's very possible that in the last two years China has been able to stabilize emission growth.
I actually disagree a bit on the first part. I think developing countries have a right to have higher per capita emissions as they raise their standard of living and economy where they can get to the point of widely adopting clean energy.
I visited Beijing in April and it was much cleaner than it was before, electric vehicles everywhere, but people were also much richer, before a car was some sort of luxury and now it was just something you could get if you could find a place to park it. It’s hard to describe.
The o the thing to consider is that China isn’t really a full on consumption economy yet, that they develop a lot of infrastructure and make a lot of stuff for export, all that would be counted in per capita emissions even if it wasn’t to the benefit of a per capita member. The infrastructure building is going to slow down someday (like it did in Japan), China should seriously consider its exports next (especially rare earth refining which is really dirty and resource intensive).