Earlier quoted context omitted.
No it's completely ridiculous that police think this is a car manufacturer issue. This is a failure of the police
I don't think you realize how easy it is to steal these cars. Look up a few videos. You rip off the plastic on the steering column, pry out the ignition cylinder and then use the A end of a usb cable to turn the exposed nub to start the car. Under 30 seconds. While there are other issues going on, this is gross negligence on Kia/Hyundai to not use an immobilizer.
You may not be able to stop desparate people from stealing, but if kids are repeatedly stealing cars for entertainment, then problem isn't the security of the cars.