On my 2012 Tacoma you can start it remotely. It is a great feature in the winter if you are parked out side during a snowstorm.
However, if you unlock the door you have to put the key in the ignition prior to touching anything else or it shuts itself off.
This was the first vehicle I have ever had with this option.
Just like the rear view camera, I would never buy another vehicle without it.
It is a “new and improved” feature. A convenience. But like all new tech, it can be used for wrong or hacked. It would be just like the feds and law enforcement to be able to exploit this feature so I would expect it. It is also a reliability hit to the over all functionality of the car. I could cause your car to break down or not start.
Heck, maybe they just blast the car with an EMP device. That’d be easier.
Toyota offer a low end version of their cars that don’t have a fob and still use a mechanical key. Trying to find one might be a challenge since it is like trying to find a standard transmission version... they either don’t make them or they are scarce.