And despite being around for 30+ years it’s not broadly adopted despite a significant rise in car thefts.
https://counciloncj.org/wp-content/uploads/2023/01/CCJ%E2%80...
There's been some other exploits to infotainment systems, but AFAIK, they are all limited to proof of concepts. And the radio-repeater that almost works occasionally on some cars with wireless key access (better implementations have proximity detection which prevents this attack vector).
As it turns out, immobilizers are pretty damn effective.
If I owned an effected Hyundai/KIA, I'd do like we all did with 90s cars and put a killswitch in. It's not professional car thieves hitting the bulk of these cars, but mostly bored people showing of. So if YT can't show them what to do if the car won't start, they will go away.