Sounds like that number just takes the CO2 that the us produces and divides by population. It would be agreeable if the wealth that came from that CO2 production did also was similarly distributed, but since it's not, that's not really how much your every day joe produces to live. It's what is produced to put another billion dollars onto a company's books.
Still, it’s produced and it’s produced because there’s demand.
But yes, I agree, the vast majority of CO2 is produced by corporations who don’t pay for the externalities they create.