Plus of course no-one is perfect.
Girls and women will walk down a dark alleyway, go out alone after dark, fail to notice a man is following them on the bus, not have the money for a cab home, take their eye off their drink for 30 seconds once in a while etc etc
It suggests that women and girls have to abide by a set of rules that is ever changing (these days with camera phones, when a woman gets upskirted or filmed without her knowledge there are smug people saying oh I ALWAYS check toilets for cameras / never wear a skirt), and many points are impossible for lots of women to adhere to. eg never walk alone after dark on quiet streets. It gets dark at about 5! And most people live on quiet streets...
And of course women and girls still get assaulted. Plus the root is not addressed > YOU didn't get attacked (which is great) so he went and attacked someone else (there will always be a more vulnerable victim available). And the idea that it was the woman's / girls fault as she didn't follow all the rules is at the forefront.
The press collude in this even when the woman has been murdered > reporting statements from the murderer without scare quotes in headlines "Victim was suspected of seeing another man!" Oh well then what did she expect...
The situation when women and girls are victims of men is not neutral. Society is not neutral. Society tends to blame the victim. This is why this stuff is so problematic.