There is no relationship. I can take apart my front door including the lock without a problem, and it is still secure. Security is a property of the locked state, repairability a property of the unlocked state.
no it is not. the fact that you can take apart your front door makes it inherently easier to get into your house vs. a door that could not be disassembled.
I’m wondering if you can explicitly say what about including an immobilizer in the north American market inherently makes those vehicles less repairable than their immobilizer-equipped counterparts in other markets.