EVs are far more efficient than conventional cars. Even if the electricity is generated from fossil fuels, EVs make better use of it
Energy efficient. EVs convert over 77% of the electrical energy from the grid to power at the wheels. Conventional gasoline vehicles only convert about 12%–30% of the energy stored in gasoline to power at the wheels.
https://www.fueleconomy.gov/feg/evtech.shtml
They are a step in a positive direction, using less energy overall. But some people get their egos involved and can't fathom changing their way of life even if it's for the better.
One can see the same thing with something like a Prius. People would rather pitch a fit than drive a car with a stellar fuel economy and so many of them want to cry about gas prices while driving around totally energy inefficient vehicles