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I remember talking to a highway construction flagger one hot afternoon as he admired my Model X. He said, "I love your car, and it is the right way to go, but it is going to put me out of job because you don't pay any gas taxes". When the new EV tax was passed this year, I remembered what he said and thought.... yep the new taxes seem fair.
Technically, due to the very small number of EVs, and the larger gains in MPG of the ICE fleet, it was CAFE that reduces the gas sales tax income. EVs are still just a blip on the radar at this point. But due to their higher price than ICE equivalents, an EV normally pays more taxes per car than ICE cars do to the state.
Oddly, we do not use Auto Sales Taxes for roads.