I'm not sure where you're getting that data from, maybe it's different where you live.
> The initial cost is extremely high, the immediate depreciation is high
I dispute that the initial cost "extremely high". Higher, yes, but those prices are coming down. The depreciation here in Ireland is a lot less than a traditional ICE car. My 3 year-old Mini Electric had lost a lot less, percentage-wise, than the comparative ICE model when I traded it in recently. My service costs for those 3 years were zero.
> fast chargers are effectively more expensive than petrol here limiting long range economy
The key word in that is probably "here". In Ireland, I can do 300 miles per €25 of fast charge. My previous diesel car would have cost €50 for the equivalent distance.