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.