Oddly, Johnson omits one of the most obvious things women can do: intelligent self-defense.  God knows I'm no expert, but I would imagine that women can prepare themselves to react suitably in all sorts of situations, ranging from "Get off me, you creep!" in the crowded subway car to using a weapon they've been trained to use.  I've encountered on the internet a document purporting to summarize the advice of convicted sexual assaulters to women wanting to avoid danger.  Whether it's genuine or not, a lot of it made intuitive sense--long hair makes you a more likely target, bulky clothing makes you less likely, carrying anything that can be used as a weapon, like an umbrella, discourages attackers, etc.  

The really tough problems are in the villages.  A drunken assaulter can be orders of magnitude more dangerous than a sober one.  And it's an undeniable fact that the victims are often drunk themselves.  

No, women shouldn't have to defend themselves.  But they do.