My assertion is not that "unless a crime affects everyone equally, potential victims shouldn't concern themselves with taking preventative measures".
My assertion is that: "Preventative measures that are aimed at, and restrict only women (in this case), to the detriment of their basic freedoms as a person (such as where they can go, when they can go, and what they should wear), are not reasonable."
Not drinking alone/to excess - applied equally as a guide to men and women - reasonable.
Not walking alone in dark, unpopulated areas - applied equally as a guide to men and women - reasonable.
Prescriptions for dress code, applied only to women - unreasonable.
Not going out alone, applied only to women - unreasonable.
Rape by a stranger is a bit of a red herring in all of these cases, as a woman is most at danger from the men she knows.
Violent assault/mugging/murder/and yes, rape are all dangers for individuals, both men and women, which is why preventative measures are reasonable as applied to both sexes.