When electric cars becomes the part of people's daily commute oil industry will experience a big blow. This will directly affect the economy of large number of countries. For that reason electric cars won't be much supported as mentioned in the above quote. To the growing population and to the pollution happening through the cars operated on fuel, electric cars could reduce the pollution to some extent.
This is not an on/off switch, its slowly gaining momentum, but its coming; like Bitcoin.
First thing is it will remove the pollution from the cities, both air and sonic.
The oil industry has little to fear, there is still plenty of demand from dinosaur juice in other areas, such as heating or derivatives like natural gas and plastics. There is a ton of diverse chemicals that come from it too.