>It's just EVs where all of the best-regarded models skew larger.
Well, yeah; batteries have really bad energy density and are extremely heavy. Length doesn't affect aerodynamics as much as width or height does, so if you want to offer reasonable ranges, the cars need to get longer.
>It would be one thing if the lack of cars in this size range also extended to ICE cars, but it doesn't.
Yes, because at that size EVs lose their TCO advantage and are strictly worse products than normal compact cars outside of that. They're better in the luxury car segment where you can have twice the horsepower, the same effective range, and more internal space with a decreased TCO because large cars are inefficient- but the Bolt offers none of those things over the Corolla, which is why it's discontinued.