That's a real head in the sand attitude!!
Up until about a year ago most EVs were higher end or mid-range vehicles (in terms of price), the difference now is that there are a lot more affordable smaller EVs, which are absolutely ideal for the second car lower usage type driving. This is significantly changing the market, historically small ICE cars held their values quite well (relatively), now they are not as many are opting to buying EVs as replacement vehicles (new or used). These vehicles will almost 100% be charged at home and therefore mileage costs per mile will be very low even with the 3p mile tax applied. They are also cheaper to maintain.
I now have a fast(er) depreciating Toyota Yaris Self Charging Hybrid in our household, and even though that is averaging 70mpg it still costing me over 10p a mile at today's fuel rates, and that cost is only going to increase. It has a realtively complicated ICE engine system which will cost more to maintain, and still uses tyres (just like an EV)
The equivalent EV with the 3p tax will cost about 5.5p a mile to run (home charged), and have cheaper running costs. And now that used EV prices of older cars are starting to firm up, I suspect will depreciate at a slower rate as we find out that battery degradation isn't the problem that many thought it would be.
Market confidence in EVs is growing and it is this and not government policies that will drive the conversion to EV. If you can charge at home its rapidly becoming a no-brainer. I accept that there is still infrastructure that needs to be resolved for households that cannot charge at home and also I expect to see away from home pricing for charging become more competitive. Resolution of these two issues will only help make an EV a better solution for many.
For me changing our other vehicle (Volvo XC60 Self Charging Hybrid) to an EV has resulted in considerable cost savings, not least in the mileage charges (currently 17p a mile less in fuel - and very noticable in monthly outgoings), but most definitely in maintenance costs (4th and 5th year warrnties from Volvo are currently about £700+ per year higher for ICE vehicles), and as I've said before I now don't think about the fuel costs when having a day out, whereas before they were a consideration. Range Anxiety just hasn't been a problem, but longer journeys do take a bit of planning to optimise stops with charging.