I can illustrate one obvious reason why sexual assaults are under-reported.

It's an office Christmas party where alcohol is being consumed. A man into his cups suddenly grabs a co-worker's breast. That's a sexual assault under the Criminal Code. Will the victim of the assault press charges with the police? Most likely not. The man will be admonished by his co-workers and employer, and possibly lose his job. But few people in that situation, including the victim, want to see the offender receive a criminal conviction for his behavior.

By definition, the crime of sexual assault covers everything from the most horrific, violent attack on a helpless adolescent right down to the example I gave above. Yet many feminist advocates insist that sexual assault of even the most minor kind is misogynist and evil. And they've pushed society and its justice system in that direction. Until a more nuanced view of the issue comes about, sexual assaults will continue to be under-reported.