I agree that we should abandon car-only transportation and instead move cars much further down the transit hierarchy. Ideally we would be relying on trains, bikes, and buses for most daily movement, using cars as needed instead of by default. But,

> still doesn't solve c02 [sic] emissions

This is incorrect. It doesn't magically make the entire grid carbon neutral but it does let us use much more efficient forms of power generation to make the electricity, and electric cars themselves do not emit CO2 (Carbon with 2 Oxygen). Effectively, switching to electric cars would remove cars themselves as a source of CO2 and make decarbonization much much easier.