I would absolutely love a low tech electric car - like an Elantra hatchback EV. I hate how every EV has to be all touchscreen-based with fancy software that needs to be updated frrquently just to drive.
Those cars are illegal to make. Any new car needs complex electronics to satisfy legal requirements, adding in an infotainment system is a negligible cost.
Are there any simple vehicles left in the US, EV or otherwise? The lowest frills cars I can think of are the Mirage and Versa, both on their last legs. Similar to the vocal minorities who want compact hatchbacks, wagons, small trucks, or manual transmissions, it feels like so few people want simple, non-smartphoney cars that the market segment will never be catered to.
Plenty of old cars out there. Otherwise, it's hard to know what people really want in the car market, because most buyers are settling for something that's at a dealer and not ordering specifics, some makes don't allow orders, and even if you can order it's still trims and packages.
For the most part, every car made gets sold, too. If a car is undesirable, it gets a lot of incentives to get it off the lot. If the car maker misunderstood demand, a dud can still have large sales numbers, because some people will buy it when it's cheap enough.