A report estimated the cost to stop using oil and natural gas for the USA in 2019 to be $4.5 Trillion and that this is similar to what we USA paid for the “War on Terror”.
The 2003 Iraq War cost 1.4 Trillion directly and maybe 2.4 Trillion in finance charges.
Note: I am not saying these wars were necessarily due to oil, but they may have gone differently.
I wonder how much USA oil wars have cost compared to moving to solar, wind, and battery?
In what way is it relevant? (I read the opening paragraphs, and do not see the connection.)
The relevance is in the assumpion is that renewable infrastructure can be built and maintained without fossils and that energy is fungible, so that electricity can substitute all fossil use and sustain a technological society in general.