The biggest issue by far right now for EVs is the grid cannot support the influx of new electricity demand caused by EV charging. Since 80% of charging is done at home, the average home uses between 20 and 30% more electricity for each EV they own, which has to come from the grid (absent distributed generation like solar panels).
The grid has seen massive underinvestment in infrastructure over the last decade+ in terms of power generation capacity, but specifically transmission capabilities. Even if you could magically drop 30 million EVs in the US, with the necessary amount of chargers, it would collapse the grid. Grid infrastructure upgrades don't exactly win you votes either, its kind of an out of sight out of mind thing, so the political will to make the necessary investments isn't really there.
This transition is gonna take way longer than some of the more optimistic forecasts think. There is literally 0 shot that 100% of cars sold in 2032 will be EVs, like some posters have said. There are many moving parts here that tend to get missed by people that think you can snap your fingers and decarbonize immediately.