Technology evolves with fossil fuels too. It’s just as likely that technology will evolve enough for CO2 reductions in fossil fuels to advance as much as efficiency and cleanliness of other forms of energy storage for EVs. But right now, there is so much more energy sorted in fossil fuels than the best battery, it’s unlikely they will be replaced as a fuel for vehicles anytime soon. And, even when/if they are, we’ll just be switching from one type of pollution to another.