Agree to some extent when it comes to cost of electric vehicle but not necessarily it will remain high, more research should bring the cost down.
Electricity can be produced without oil so there will not be any dependency on oil when it comes to Electric vehicles.
third world countries are rapidly adopting to new technologies and innovations, iPhones and LED TVs have become common personal and house hold items.
so in my opinion, if major oil producers keep the prices of oil very high, it will be a big loss for them in long term..