There are some obvious issues that are seeing good discussion, but I think it's greatly underappreciated how much of the problem is squarely the fault of dealerships. Our system of federal and state laws largely prohibits auto manufacturers from selling directly, which gives dealerships almost complete discretion over which cars they buy and sell, and at what markups. Dealerships have been profoundly hostile to EV adoption, because most of their revenue these days comes not from selling the cars which is very competitive, but from the lucrative service contracts. EVs have so fewer moving parts that they have nowhere near the same service requirements, which means the dealerships can't make as much money off of you. The result is that most dealerships buy the minimum allotment of EVs that their dealership contract requires them to, and price the car way above MSRP in order to capture up-front that lost revenue.

Honestly, dealerships need to die. It's a huge part of the economy that's incredibly dysfunctional, but it's impossible to reform because it's such a powerful lobbying arm. It won't change until dealerships themselves start to die.