Raising the price of fuel will do wonders for solving that.
That won't "solve" anything. Car prices will rise, many people can't afford the switch regardless, too much new EV demand could destabilize the grid in population centers, and throwing away vehicles that are already on the road by replacing them with newly manufactured ones is terrible from an emissions perspective.
In California my electricity to drive my Chevy Volt is more expensive than gasoline, if gasoline is less than $5 a gallon. So for basically the last 100k miles I've owned it, electricity was more expensive. The same goes for many plugin hybrids. Luxury EVs still win out because luxury sedans usually only get 25 mpg mixed max.