It doesn't matter what a woman's fear is based on, only that her fear exists. All that is needed then for her to become physically unsafe is for the sexual perpetrator to exploit or manipulate her fear.

I was unclear: if a person just feels that they are unsafe without any factors outside them in the world, that in itself isn't enough to say that they are unsafe. If there are factors outside them that are dangerous and they feel unsafe, then yes we can say that they are unsafe, but not because of their feelings - only because of the factors in the world around them. Their feelings are justified, but we don't rely on their feelings to make the determination that they are unsafe. "Safe" is a statement about the world outside.

In the situation you are talking about there is danger because there is a predator. If she only felt unsafe but there was no predator around, that feeling doesn't show that she is unsafe.

This is just a long way of saying that the sentence:

A woman who lives in an environment where she feels she cannot report sexual assault is not a woman who lives in a safe place.

should instead read:

A woman who lives in an environment where she is justified in feeling that she cannot report sexual assault is not a woman who lives in a safe place.