I basically agree. We can't rebuild our cities in 7 years, so we have to "patch" cars to be zero emissions. How do you get tens of millions of people to do that in 7 years though? Keep in mind average yearly income is something like $45k and most Americans have less than $500 in savings--not exactly a market ready to wholesale replace their cars.
I think it's clear that if you want to halve transportation emissions in 7 years you have to ban their current ICE car, and the only way you get away with that is to give them a comparable EV. We still have to build out mass transit and rezone everything, and also hit the mute button on NIMBYs everywhere, but short term you have to do a swap, like immediately. The money required for this is... astronomical, it's at least trillions for an ICE/EV swap, but you also need subsidies for auto manufacturers and developers, and you also need to weather the political storm of essentially stealing cars (a huge part of American culture) and putting grocery stores in the suburbs.
I think it's clear that if you want to halve transportation emissions in 7 years you have to ban their current ICE car, and the only way you get away with that is to give them a comparable EV. We still have to build out mass transit and rezone everything, and also hit the mute button on NIMBYs everywhere, but short term you have to do a swap, like immediately. The money required for this is... astronomical, it's at least trillions for an ICE/EV swap, but you also need subsidies for auto manufacturers and developers, and you also need to weather the political storm of essentially stealing cars (a huge part of American culture) and putting grocery stores in the suburbs.