I'm not buying an EV to save money. Right now the economics are a bit skewed, but I'd buy an EV even if gas was $1/gallon. Emissions are the reason why I want to buy an EV. Ditto for going solar, etc.
That is, if a gasoline powered engine is actually less expensive, why not drive the gas engine and invest or donate the savings towards alternative energy initiatives? That way EVs (and alternative energy in general) can flourish and become unequivocally better.