And I see nothing in that link that suggests that the EPA is interested in legislating, controlling or regulating human breathing. I do notice, specifically, that motor vehicles are singled out. It doesn't mention Methane gas from livestock, coal power plant emissions, or any other industrial emissions. There is no one out there trying to regulate the CO2 in the air you exhale. Motor vehicles emit far more CO2 than you do when you breathe.
I'd say that I should have seen the WSJ link and should have remembered not to feed the trolls, but that would be an abusive ad hominem fallacy. Your argument isn't wrong because I think you're a troll. Your argument is wrong because it contains a fallacy. Your fallacy is the classic
Straw Man. The EPA says CO2 from cars falls under their jurisdiction and will be regulated. You over simplify and twist that to suggest that all CO2 produced then falls under the EPA's jurisdiction. You attack the misinterpretation with your breathing example.