What we definitely haven't been lacking in the past ten years at least is high emphasis on the importance of prosecuting sexual harassment and violence, especially in countries such as the UK. I think this excludes an underestimation of the importance of these crimes.

And since the amount of resources dedicated to solving each case is proportional to its gravity, the fact that almost 90% of these crimes are unsolved probably means that most of them are minor and/ or lacking principal suspects, witnesses or evidence.