Go a month without consuming any oil. No products created, transported, fertilized, packaged with the benefit of oil.
Done? Tell me again that oil is irrelevant?
I do get your point that the leftist chant was no blood for oil, but I didn't see them walking to those protests either.
The war in Iraq is not about oil. We use cash to buy oil and the military to oppose criminal thugs. The fundamental motivation for sending the military into Iraq is to destroy the criminal jihadi enterprise that operated in Iraq. That enterprise was not the oil market, it was export of death, destruction and terrorism. Oil is irrelevant.