Society teaches women that all men are potential rapists, in my opinion.
When they say don't walk down dark alleys alone, they are not saying all men on that dark path is a rapist, they are saying there might be one there, so don't walk down it.
When they say don't drink to much, they are not saying all men will rape an incapacitated woman, they are saying some will, so best not to drink.
When they say don't encourage him, they are not saying every man a woman is friendly with will rape her, but that some will.
A woman has absolutely no way of knowing which men are rapists, any random man could be a rapist, saying all men are potential rapists, is not the same as saying all men will rape.
If my son is walking home down a dark path and sees a lone woman ahead pick up speed, he would hold back and let her get more distance between them, he wouldn't be offended that she'd thought he could potentially harm her, to her, he is a potential rapist, she can't know he is not and he'd get why she'd pick up her speed, he'd be offended at the men who rape women and have made a society that tells women not to walk down dark paths alone to protect themselves from rape.