The best argument against the blackout bit: Ukraine

Every single used budget EV was bought up by Ukrainians when the war started. Nissan Leafs, older Hyundai Ioniqs, Renault Zoes

Gas stations were bombed and the whole logistic chain for delivering gasoline and diesel was disrupted or prioritised for the military

But everyone had power at least for a part of the day, so they could charge EVs.