I think the problems of electric cars today are like the problems of the early horseless carriages. Despite all the people shouting "get a horse!", the problems were not inherently unsolvable, they just took time to solve before they could provide reliable and affordable transportation for the average person.
Probably quite correct. A couple of little differences though. In the change from horses and carriages there wasn’t a drive to get it done in a particular amount of time. It happened organically if you like. This is being driven in effectively a much shorter period.
Also in many places there was a vast amount of development of infrastructure going on at the same time. Towns and cities were being built and expanding, so the cost of that could be wrapped up in stuff that was already happening. This is maybe not the case so much today.
Finally the infrastructure required to operate a motor vehicle is not so connected as that for charging electric vehicles. You need to get oil, refine it, deliver it to filling stations and into cars. The stages are not interconnected in the same way as generating sufficient and delivering high voltage power to a charging station.
Edit to add: The change from horse to car would have been nowhere near as widespread as the change from fossil fuel to electric either. Back then the average Joe almost certainly did not own a horse and the progression of ownership of cars was very slow. Even into the 50s in the U.K. 80-90% of households did not own a car. Right now there are over 40 million cars on the road in the U.K. and people are very used to being able to use them at the drop of a hat.
The change to electric cars may be analogous with the change from horse to car but it’s a problem many times the magnitude, with a massive cost attached, huge disruption to integrate and being rammed in at a, imho, unrealistic speed.