You can "decarbonize" to the maximum extent possible and it MIGHT reduce total global carbon fuel use 0.001%.
I saw a good analysis yesterday that showed how much "decarbonization" will occur when half of the WORLD's automobile fleet is all EVs. It was pathetically small, less than 5%.
CO2 in our lungs reaches 40,000–50,000 ppm. Each human exhales 2.3 pounds of CO2 per day. Earth’s 8 billion people produce 18.4 billion pounds of CO2 per dayHumans are 1/40 of all CO2-excreting life on Earth. Overall CO2 excreted by the total animal and fungal biomass on the planet is 736 billion pounds of CO2 per day.
Daily CO2 emissions from all worldwide human industrial sources in 2020 were 35.2 billion pounds.
The entire animal and fungal biomass puts out more than 20 times as much CO2 as all industrial emissions.
This ignores CO2 emissions from natural sources such as volcanoes.
Carbonphobia rots the brain.