The CO2 levels are all about absolute emissions. Per capita is irrelevant when we’re talking about total damage being done. 2 new coal plants a week is terrible.
Per capita is relevant when we are talking about countries or regions, if not the easy way is to cut the region in 2 and say you have cut emissions by 50%.
The per capita is irrelevant is often used by small countries as an excuse for not doing anything because "they" are so many more than "we", so what "we" do don't change anything
If they build 2 coal plants, we can tear down 4 natural gas plants and still reduce overall emissions. Sure, we may need some rolling blackouts, but such is the price - we'll still live much better than the vast majority of the world.