because size they won't sell well

Looks like a typo, so I'm not exactly sure what you're saying, but I'm going to guess you're implying that the public prefers smart devices to less smart devices.

I don't know if that's true, but my understanding is that smart devices tend to sell better because they're discounted and have better hardware features, because companies want to make money on selling your data (viewing habits, installed apps, etc). But I would have to dig deeper to look for evidence.

You need something... brake... throttle... abs, stability control, etc

And all of that is fine, and that's what many cars do today. That's not really what I or anyone else annoyed at.

Here's what I don't like:

• cryptographically paired, essential components (e.g. iPhone and MacBook do this a lot to prevent third party repair)
• infotainment systems that can't be replaced/bypassed because they also control core functionality
• lack of diagnostic information - OBDII port isn't required on EVs because they have no emissions
• tracking by manufacturer - if you can access your car remotely, the manufacturer can and will

Any of that should be opt-in, not a core part of the car. I don't want to be locked into an ecosystem, limited in my ability to maintain and repair something I own, tracked, or forced to use their janky software. I want a vehicle that gets me from a to b, and the manufacturer shouldn't know where a or b are, nor should they dictate what else I can do with the car.