While I also think that humanity would be better off with less cars, I think one shouldn't mix up those matters. To some extend, humanity needs cars and we should push for making those cars as efficient and environmental friendly as possible. Hence electric cars. They are the technology which allows us to use cars into the future.

However I agree, wherever possible, less cars would be good. Public transit and bicycles work well in those regions, which have the proper infrastructure. Some European cities are quite good in this respect, others are following.

Fun fact though: between an efficient electric car (like the Tesla Model 3) and an electric train or even a Diesel bus, there is little efficiency difference, in a lot of cases the electric car wins. But trains win on not contributing to congested streets etc.