You may be correct but it won't be the first time a new EV tech blossomed and died out. Current generation battery tech has proven to be an advancement over lead acid and NiCads which themselves were advancements over the old Edison batteries that powered EVs circa 1900.
Some new storage tech will come along offering very high power-to-weight and fast charging. This future storage tech will force a new generation of EVs that may supplant IC technology as king of the road.
Yep it all comes down to the energy density of batteries. Incandescent bulbs were king for over 100 years and then LEDs dethroned them when the tech got good enough (and cheap enough).
Insurance companies will end the performance advantes of EV’s. Sooner that most people think. The first time a 21 year old girl hits an underground garage wall at 75 mph that will be the end.
Or, the NEXT time an apartment building under ground garage EV file destroys 200 cars and renders 150 families homeless.
Or, someone notices that the end of battery or software life cycle makes the EV a 3000 pound hazardous waste problem.
Its just a matter of time.
I think a re-invention of clean diesel powering 1200-1500 pound vehicles at 65-80 mpg and 70 mph will make it impossible for EV’s of any storage technology to compete without fake carbon scare coercion.