The Chinese government banned Tesla vehicles from entering (Chinese) military bases. This is due to the prolific number of cameras streaming live video to a hostile (to China) organization/government. One can find blogposts by analysts who show that the upload stream from Tesla vehicles includes cabin audio.
I’m not worried even a lick about what cars cost electronics or otherwise. My primary factor in selecting a vehicle is my physical safety; after that it’s electronic surveillance.
> I have never met anyone in real life that's concerned about telemetry on their car
You mean you've never had a conversation about it. You can't know if you've met somebody that has that concern unless you've broached the subject explicitly.