You're argument boils down to 'women should not be alone with rapists'. Great idea, but how do we manage that in practice? How do women take precautions without avoiding all men, including their family members? It's not as simple as 'don't go into dark alleys at night'. Locking your car is a simple, reasonable precaution. Noone expects your car to have a bodyguard, but women are told by everyone to never go out alone. We are expected to have bodyguards. Why is this necessary?