> So claiming car drivers do not pay the costs is just plain wrong.

We can’t determine that that is the case simply because the cost seems like a lot. California has the highest gas taxes in the US, so even if California is correctly pricing the externalities of consuming a gallon of gas (which I very much doubt), the rest of the country is under-pricing those externalities. The EU has a minimum gas tax of $1.60 per gallon, so if they are correctly pricing the externalities, California must be under-pricing them by over half.