> The problem is entirely that the vast majority of new car buyers don't want "basic cars."

Mostly, I'd like to buy a basic car, but in the US, you've mostly got to buy off the lot, and basic cars aren't well stocked; maybe they don't sell as fast so dealers don't stock them, maybe they don't make as much margin so dealers don't stock them, either way, they're not there so you can't buy them. You might be able to convince a dealer to order it, but then you're usually not going to get any of the promotions, and it's not worth waiting 2-3 months and paying more so you don't have to get the features you don't want.