The issue is still delicate. Even in cases of hypersexualization, there's no justification for a person becoming a victim.
I have trouble making a link with violence, because even though girls are hypersexualized, boys are hypersexualized as well.
I have trouble determining when it becomes negative. The issue is still a matter of culture or education and of knowing what is appropriate and what is not. Maybe we should start with reviewing our way of educating both girls and boys on how to express their sexuality.