At any rate, life goes on of course, "we" will throw money at this "problem", not nearly enough to matter to the problem but enough to line pockets of the connected out there. I could guess someone making too much to get the $7500 tax credit on a new EV might have a "straw purchaser" buy it for them, if the money is even a consideration to them. The salary cap on this is pretty high anyway.
The best forecast I've seen has half the cars in the US being ICE vehicles by 2050 anyway. That would cut auto pollution some, if the electricity is "green", but you still have heavy trucks as a rather major emitter. There are a lot of trucks out there running on Diesel at 8-10 mpg. One truck = 3-4 cars. Maybe they go to fuel cells which poses another infrastructure challenge.
Then there is the grid of course and all the various power sources. The EIA projects we'll still be burning a good bit of coal in 2050. Wind and solar are OK with me but the intermittency issue remains as of now. Nuclear is going to drop over time as current plants are decommissioned and new plants don't happen unless SMRs catch fire, so to speak. There simply is no realistic plan, just hand waving.