Customers will come to realize that electricity comes with consistent pricing. We know how much it cost and expect it to become cheaper over time. Oil obviously has not been in consumers favor very much.
Fluctuating gasoline price is not the case everywhere. In many European countries gasoline price is relatively consistent for consumers. This example is from my country, but most others apply fixed taxes in similar fashion.
Normal situation:
tax free price 0,72€/litre
fixed taxes 0,6504€/litre
VAT 24% (non-fixed tax) 0,329€/litre
total consumer price 1,7€/litre
Oil-crisis situation (getting there now):
tax free price 0,36€/litre
fixed taxes 0,6504€/litre
VAT 24% (non-fixed tax) 0,242€/litre
total consumer price 1,25€/litre
If oil was free situation:
tax free price 0€/litre
fixed taxes 0,6504€/litre
VAT 24% (non-fixed tax) 0,156€/litre
total consumer price 0,81€/litre
I don't know current US prices, but US gallon equals 3,785 litres. That means many Europeans would pay 3,07€ per gallon for their gasoline (0,81€ x 3,785) if oil market price went to zero. EVs are actually better deal than many realize
EDIT: of course 1,25€ is different from 1,7€, but point was that 50% discount in oil price doesn't make driving ICE vehicles 50% cheaper.