Your argument is correct, but you're overestimating the actual price of the car by 10%+, and underestimating cost of a level 2 charger by about the same amount

Your argument is correct, but you're overestimating the actual price of the car by 10%+, and underestimating cost of a level 2 charger by about the same amount (or rather, a level 2 plug or adapter. Unlike DC-DC charging, the AC-DC charger is installed in the car itself: the on-wall device just handles handshake and various safety shut off mechanisms).