It's an example of good being the enemy of perfect. Replacing all the cars on the road with tesla's isn't ever going to get rid of cars. In fact it's going to continue to discourage any of the societal changes required to reduce car dependency. So with electric cars we still get all the shit car-dependency gave to us. So our zoning laws will still be fucked because people are encouraged to buy new cars. We have lower density living because people need to park (and charge) their electric cars. New neighbors are still built with transit via electric cars as the primary transit option. Public Transit is never developed because now more money has to be spent on roads to support the 2-3x heavier electric cars.

There is no world where electric cars decrease car-dependency.